115 (number)
Encyclopedia
115 is the natural number
following 114
and preceding 116
.
and a lucky number
.
Because 115 has an odd number of 1s in its binary representation, it is sometimes called an "odious number."
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 114
114 (number)
114 is the natural number following 113 and preceding 115.-In mathematics:*One hundred [and] fourteen is an abundant number, a sphenic number and a Harshad number. It is the sum of the first four hyperfactorials, including H...
and preceding 116
116 (number)
116 is the natural number following 115 and preceding 117.-In mathematics:116 is a noncototient, meaning that there is no solution to the equation , where stands for Euler's totient function. 116! + 1 is prime...
.
In mathematics
115 is a heptagonal pyramidal numberHeptagonal pyramidal number
A heptagonal pyramidal number is the sum of the first few heptagonal numbers. The heptagonal number for n can be calculated by adding up the heptagonal numbers for 1 to n, or by using the formula n/6....
and a lucky number
Lucky number
In number theory, a lucky number is a natural number in a set which is generated by a "sieve" similar to the Sieve of Eratosthenes that generates the primes.Begin with a list of integers starting with 1:...
.
Because 115 has an odd number of 1s in its binary representation, it is sometimes called an "odious number."
In other fields
115 is also:- The atomic numberAtomic numberIn chemistry and physics, the atomic number is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus. It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element...
of an element temporarily called ununpentiumUnunpentiumUnunpentium is the temporary name of a synthetic superheavy element in the periodic table that has the temporary symbol Uup and has the atomic number 115....
. - The fire service emergency number in MauritiusMauritiusMauritius , officially the Republic of Mauritius is an island nation off the southeast coast of the African continent in the southwest Indian Ocean, about east of Madagascar...
- The name of the easter egg song in the Zombie map, Kino Der Toten in Call of Duty: Black OpsCall of Duty: Black OpsCall of Duty: Black Ops is a first-person shooter video game developed by Treyarch, published by Activision and released worldwide on November 9, for Microsoft Windows, Xbox 360, PlayStation 3, Wii consoles, with a separate version for Nintendo DS developed by n-Space. Announced on April 30, 2010,...
See also
- List of highways numbered 115
- National longevity recordholdersNational longevity recordholdersThis is a list of oldest people by nation. It includes the individual, for each given country, who are reported to have had the longest lifespan. Such records can only be determined to the extent that the given country's records are reliable. Comprehensive birth registration largely came into being...
- Oldest people