| ||||
|---|---|---|---|---|
| Cardinal | twenty-four | |||
| Ordinal | 24th (twenty-fourth) | |||
| Numeral system | tetravigesimal | |||
| Factorization | 23 × 3 | |||
| Divisors | 1, 2, 3, 4, 6, 8, 12, 24 | |||
| Greek numeral | ΚΔ´ | |||
| Roman numeral | XXIV, xxiv | |||
| Binary | 110002 | |||
| Ternary | 2203 | |||
| Senary | 406 | |||
| Octal | 308 | |||
| Duodecimal | 2012 | |||
| Hexadecimal | 1816 | |||
24 (twenty-four) is the natural number following 23 and preceding 25. It is equal to two dozen and one sixth of a gross. There are 24 hours in a day.
24 is an even composite number, a highly composite number, an abundant number, a practical number, and a congruent number. The many ways 24 can be constructed inspired a children's mathematical game involving the use of any of the four standard operations on four numbers on a card to get 24.
24 is also part of the only nontrivial solution pair to the cannonball problem, [1] and the kissing number in 4-dimensional space. An icositetragon is a regular polygon with 24 sides. A tesseract has 24 two-dimensional square faces.