63 (number)
Encyclopedia
63 is a natural number
following 62
and preceding 64
.
since n is not prime
and 63 is certainly not prime either. It is a Woodall number
and a Harshad number
. It is a highly cototient number
. It is a repdigit
in base 4 (333). 63 + 2 = 65
Natural number
In mathematics, the natural numbers are the ordinary whole numbers used for counting and ordering . These purposes are related to the linguistic notions of cardinal and ordinal numbers, respectively...
following 62
62 (number)
62 is a natural number following 61 and preceding 63. It is a composite number with the divisors 2 and 31 being the eighteenth discreet semiprime. 62 has an aliquot sum of 34; itself a discrete semiprime, and the 10 member aliquot sequence . 62 is therefore the tenth member of the 7-aliquot tree...
and preceding 64
64 (number)
64 is the natural number following 63 and preceding 65.-In mathematics:Sixty-four is the square of 8, the cube of 4, and the sixth power of 2. It is the smallest number with exactly seven divisors. It is the lowest positive power of two that is adjacent to neither a Mersenne prime nor a Fermat...
.
In mathematics
Although a number of the form 2n - 1, 63 is not a Mersenne primeMersenne prime
In mathematics, a Mersenne number, named after Marin Mersenne , is a positive integer that is one less than a power of two: M_p=2^p-1.\,...
since n is not prime
Prime number
A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. A natural number greater than 1 that is not a prime number is called a composite number. For example 5 is prime, as only 1 and 5 divide it, whereas 6 is composite, since it has the divisors 2...
and 63 is certainly not prime either. It is a Woodall number
Woodall number
In number theory, a Woodall number is any natural number of the formfor some natural number n. The first few Woodall numbers are:Woodall numbers were first studied by Allan J. C. Cunningham and H. J. Woodall in 1917, inspired by James Cullen's earlier study of the similarly-defined Cullen numbers...
and a Harshad number
Harshad number
A Harshad number, or Niven number in a given number base, is an integer that is divisible by the sum of its digits when written in that base. Harshad numbers were defined by D. R. Kaprekar, a mathematician from India. The word "Harshad" comes from the Sanskrit + , meaning joy-giver. The Niven...
. It is a highly cototient number
Highly cototient number
In number theory, a branch of mathematics, a highly cototient number is a positive integer k which is above one and has more solutions to the equation...
. It is a repdigit
Repdigit
In recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system....
in base 4 (333). 63 + 2 = 65
Astronomy
- Messier objectMessier objectThe Messier objects are a set of astronomical objects first listed by French astronomer Charles Messier in 1771. The original motivation of the catalogue was that Messier was a comet hunter, and was frustrated by objects which resembled but were not comets...
M63, a magnitude 8.5 galaxyGalaxyA galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust, and an important but poorly understood component tentatively dubbed dark matter. The word galaxy is derived from the Greek galaxias , literally "milky", a...
in the constellationConstellationIn modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....
Canes VenaticiCanes VenaticiCanes Venatici is one of the 88 official modern constellations. It is a small northern constellation that was created by Johannes Hevelius in the 17th century. Its name is Latin for "hunting dogs", and the constellation is often depicted in illustrations as representing the dogs of Boötes the...
, also known as the Sunflower GalaxySunflower GalaxyThe Sunflower Galaxy is a spiral galaxy in the constellation Canes Venatici consisting of a central disc surrounded by many short spiral arm segments...
.
- The New General CatalogueNew General CatalogueThe New General Catalogue of Nebulae and Clusters of Stars is a well-known catalogue of deep sky objects in astronomy. It contains 7,840 objects, known as the NGC objects...
object NGC 63, a spiral galaxySpiral galaxyA spiral galaxy is a certain kind of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae and, as such, forms part of the Hubble sequence. Spiral galaxies consist of a flat, rotating disk containing stars, gas and dust, and a central concentration of stars known as...
in the constellation PiscesPisces (constellation)Pisces is a constellation of the zodiac. Its name is the Latin plural for fish, and its symbol is . It lies between Aquarius to the west and Aries to the east...
- The Saros number of the solar eclipseSolar eclipseAs seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and the Earth, and the Moon fully or partially blocks the Sun as viewed from a location on Earth. This can happen only during a new moon, when the Sun and the Moon are in conjunction as seen from Earth. At least...
series which began on -879 April 20 and ended on 401 May. The duration of Saros series 63 was 1280.1 years, and it contained 72 solar eclipses.
- The Saros number of the lunar eclipseLunar eclipseA lunar eclipse occurs when the Moon passes behind the Earth so that the Earth blocks the Sun's rays from striking the Moon. This can occur only when the Sun, Earth, and Moon are aligned exactly, or very closely so, with the Earth in the middle. Hence, a lunar eclipse can only occur the night of a...
series which began on -758 October 12 and ended on 739 March. The duration of Saros series 63 was 1496.5 years, and it contained 84 lunar eclipses.
In other fields
Sixty-three is:- AsciiASCIIThe American Standard Code for Information Interchange is a character-encoding scheme based on the ordering of the English alphabet. ASCII codes represent text in computers, communications equipment, and other devices that use text...
for question mark: '?' - The code for international direct dial calls to the PhilippinesPhilippinesThe Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...
- The hull numberHull classification symbolThe United States Navy, United States Coast Guard, and United States National Oceanic and Atmospheric Administration use hull classification symbols to identify their ship types and each individual ship within each type...
of the U.S. Navy's aircraft carrier USS Kitty Hawk (CV-63)USS Kitty Hawk (CV-63)The supercarrier USS Kitty Hawk , formerly CVA-63, was the second naval ship named after Kitty Hawk, North Carolina, the site of the Wright brothers' first powered airplane flight... - The number of the French department Puy-de-DômePuy-de-DômePuy-de-Dôme is a department in the centre of France named after the famous dormant volcano, the Puy-de-Dôme.Inhabitants were called Puydedomois until December 2005...
- The number of groats in a guineaGuinea (British coin)The guinea is a coin that was minted in the Kingdom of England and later in the Kingdom of Great Britain and the United Kingdom between 1663 and 1813...
in British pre-decimal currency - A card gameSixty-three card gameSixty-three is a card game popular in Carleton County, New Brunswick, and on Cape Breton Island, Nova Scotia, and is named after the number of points which can be taken in a hand. This game is nearly identical to the Pitch variant Pedro...
, popular in Carleton County, New BrunswickNew BrunswickNew Brunswick is one of Canada's three Maritime provinces and is the only province in the federation that is constitutionally bilingual . The provincial capital is Fredericton and Saint John is the most populous city. Greater Moncton is the largest Census Metropolitan Area... - The Stoner 63Stoner 63The Stoner 63, also known as the XM22/E1, is an American modular weapons system designed by Eugene Stoner in the early 1960s. It was produced by Cadillac Gage and used in very limited numbers in Vietnam by members of the United States Navy SEALs and several law enforcement...
, a machine gunMachine gunA machine gun is a fully automatic mounted or portable firearm, usually designed to fire rounds in quick succession from an ammunition belt or large-capacity magazine, typically at a rate of several hundred rounds per minute.... - The number of chromosomes found in the offspring of a donkeyDonkeyThe donkey or ass, Equus africanus asinus, is a domesticated member of the Equidae or horse family. The wild ancestor of the donkey is the African Wild Ass, E...
and a horseHorseThe horse is one of two extant subspecies of Equus ferus, or the wild horse. It is a single-hooved mammal belonging to the taxonomic family Equidae. The horse has evolved over the past 45 to 55 million years from a small multi-toed creature into the large, single-toed animal of today... - Class of '63 was a TV movie starring James BrolinJames BrolinJames Brolin is an American actor, producer and director, best known for his roles in soap operas, movies, sitcoms, and television. He is the father of actor Josh Brolin and husband of singer/actress Barbra Streisand.-Early life:...
(1973)
In sports
- Tom DempseyTom DempseyThomas Dempsey is a former American football placekicker in the National Football League for the New Orleans Saints , Philadelphia Eagles , Los Angeles Rams , Houston Oilers and Buffalo Bills . He attended high school at San Dieguito High School and played college football at Palomar College...
of New Orleans SaintsNew Orleans SaintsThe New Orleans Saints are a professional American football team based in New Orleans, Louisiana. They are members of the South Division of the National Football Conference of the National Football League ....
, Nov. 8, 1970, Jason ElamJason ElamJason Elam is a retired American football placekicker. He was drafted by the Denver Broncos in the third round of the 1993 NFL Draft. He played college football at Hawaii....
of the Denver BroncosDenver BroncosThe Denver Broncos are a professional American football team based in Denver, Colorado. They are currently members of the West Division of the American Football Conference in the National Football League...
, Oct. 25, 1988 and Sebastian JanikowskiSebastian JanikowskiSebastian Janikowski is a left-footed Polish placekicker who plays for the National Football League's Oakland Raiders. He is nicknamed The Polish Cannon because he is considered to have one of the strongest kicking legs in the league, and leads the NFL in kickoffs for touchbacks. He lives in...
of the Oakland RaidersOakland RaidersThe Oakland Raiders are a professional American football team based in Oakland, California. They currently play in the Western Division of the American Football Conference in the National Football League...
, Sep. 12, 2011 had NFL record 63-yard field goals - Michael JordanMichael JordanMichael Jeffrey Jordan is a former American professional basketball player, active entrepreneur, and majority owner of the Charlotte Bobcats...
scored a record 63 points in a Chicago BullsChicago BullsThe Chicago Bulls are an American professional basketball team based in Chicago, Illinois, playing in the Central Division of the Eastern Conference in the National Basketball Association . The team was founded in 1966. They play their home games at the United Center...
–Boston CelticsBoston CelticsThe Boston Celtics are a National Basketball Association team based in Boston, Massachusetts. They play in the Atlantic Division of the Eastern Conference. Founded in 1946, the team is currently owned by Boston Basketball Partners LLC. The Celtics play their home games at the TD Garden, which...
(double-overtime) NBA playoff game on April 20, 1986 - In U.S. college athleticsCollege athleticsCollege athletics refers primarily to sports and athletic competition organized and funded by institutions of tertiary education . In the United States, college athletics is a two-tiered system. The first tier includes the sports that are sanctioned by one of the collegiate sport governing bodies...
, schools that are members of NCAA Division I FCS are allowed to provide their footballCollege footballCollege football refers to American football played by teams of student athletes fielded by American universities, colleges, and military academies, or Canadian football played by teams of student athletes fielded by Canadian universities...
players with athletically-related financial aid equivalent to a total of 63 full athletic scholarshipAthletic scholarshipAn athletic scholarship is a form of scholarship to attend a college or university awarded to an individual based predominantly on his or her ability to play in a sport...
s in a given season.
In Religion
- There are 63 Tractates in the Mishna, the compilation of Jewish Law.
- There are 63 Saints in South Indian ShaivismShaivismShaivism is one of the four major sects of Hinduism, the others being Vaishnavism, Shaktism and Smartism. Followers of Shaivism, called "Shaivas," and also "Saivas" or "Saivites," revere Shiva as the Supreme Being. Shaivas believe that Shiva is All and in all, the creator, preserver, destroyer,...
- There are 63 Salakapurusas (great beings) in Jain cosmology