126 (number)
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126 is the natural number following 125 and preceding 127.
| ||||
|---|---|---|---|---|
| Cardinal | one hundred [and] twenty-six | |||
| Ordinal | th | |||
| Numeral system | 126 | |||
| Factorization | ||||
| Divisors | 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126 | |||
| Greek numeral | ΡΚϚ´ | |||
| Roman numeral | CXXVI | |||
| Binary | 11111102 | |||
| Ternary | 112003 | |||
| Senary | 3306 | |||
| Octal | 1768 | |||
| Duodecimal | A612 | |||
| Hexadecimal | 7E16 | |||
In mathematics
One hundred [and] twenty-six is a pentagonal pyramidal number, and a decagonal number as well as a pentatope number. It is an abundant number.
125 and 126 form a Ruth-Aaron pair under the second definition in which repeated prime factors are counted as often as they occur.
In base 10, it is a Harshad number as well as a Friedman number, since 126 = 6 × 21.
On the standard 3x3 Rubik's Cube, starting from the original set position, the basic algorithm of alternating top rotation- side rotation will return the cube to its original state in 126 moves.
In other fields
126 is also:
- The atomic number of unbihexium, an element that has not yet been discovered.
- 126 is the seventh magic number in nuclear physics (2, 8, 20, 28, 50, 82, 126)
- 126 film photographic film "cartridge" format
- 126 film (roll format), another type of photographic film produced from 1906 to 1949.
See also
- 126th (disambiguation)
- The year AD 126 or 126 BC
- 126 AH is a year in the Islamic calendar that corresponds to 743 – 744 CE
- 126 Velleda is a Main belt asteroid
- List of highways numbered 126
- United Nations Security Council Resolution 126
- The 126th General Assembly of Ohio, 2005–2006
- Sonnet 126 by William Shakespeare