512 is the natural 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 511 and preceding 513.

512 is a power of two

Power of two

In mathematics, a power of two means a number of the form 2n where n is an integer, i.e. the result of exponentiation with as base the number two and as exponent the integer n....

: 2⁹ (2 to the 9th power) and the cube of 8: 8³.

Also, it is the eleventh Leyland number

Leyland number

In number theory, a Leyland number is a number of the form xy + yx, where x and y are integers greater than 1. The first few Leyland numbers are...

.

Special use in computers

512 bytes

Octet (computing)

An octet is a unit of digital information in computing and telecommunications that consists of eight bits. The term is often used when the term byte might be ambiguous, as there is no standard for the size of the byte.-Overview:...

 is a common sector

Disk sector

In computer disk storage, a sector is a subdivision of a track on a magnetic disk or optical disc. Each sector stores a fixed amount of user data. Traditional formatting of these storage media provides space for 512 bytes or 2048 bytes of user-accessible data per sector...

 size and exactly a half of kibibyte

Kibibyte

The kibibyte is a multiple of the unit byte for quantities of digital information. The binary prefix kibi means 1024; therefore, 1 kibibyte is . The unit symbol for the kibibyte is KiB. The unit was established by the International Electrotechnical Commission in 1999 and has been accepted for use...

.

Internet Relay Chat

Internet Relay Chat

Internet Relay Chat is a protocol for real-time Internet text messaging or synchronous conferencing. It is mainly designed for group communication in discussion forums, called channels, but also allows one-to-one communication via private message as well as chat and data transfer, including file...

 restricts the size of a message to 510 bytes, which fits to 512-bytes buffer together with message separating CRLF sequence.

512 = 2·256

256 (number)

256 is the natural number following 255 and preceding 257.-In mathematics:256 is a composite number, with the factorization 256 = 28, which makes it a power of two....

 is the highest number of glyphs, which VGA character generator

VGA compatible text mode

The implementation of computer monitor text mode on VGA compatible hardware is quite complex. Its use on PC compatible computers was widespread in 1980s–1990s , but persists today for some applications even on modern desktop computers...

can use simultaneously.