256 (number)
From Wikipedia, the free encyclopedia
| 256 | |
|---|---|
| Cardinal | two hundred [and] fifty-six |
| Ordinal | 256th (two hundred [and] fifty-sixth) |
| Factorization | 256 = 28 |
| Roman numeral | CCLVI |
| Binary | 100000000 |
| Octal | 400 |
| Duodecimal | 194 |
| Hexadecimal | 100 |
256 (two hundred [and] fifty-six, CCLVI) is the natural number following 255 and preceding 257. It is a composite number, with the factorization 256 = 28, which makes it a power of two.
It is also equal to:
- 162, the square of 16
- 44
- 4↑↑2 using Knuth's up-arrow notation
In fonts with text figures, 256 uses each possible x-height: 
.
Two hundred fifty-six is also:
- The number of characters in the new Braille 8-dot system.
- The number of different values in one byte, which makes it the typical number of different values in each color channel of a digital color image (see color space encoding).
- The year AD 256 and 256 BC.
- The Split-Screen Level in Pacman
- The number of counties in Texas.
- The number of characters in Mikhail Bulgakov's novel The Master and Margarita.
- An area code in Alabama.
- The number of regular season football games in the NFL.
- The frequency of Middle C on a piano in hertz.
