| ||||
|---|---|---|---|---|
| Cardinal | seventy-two | |||
| Ordinal | 72nd (seventy-second) | |||
| Factorization | 23 × 32 | |||
| Divisors | 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 | |||
| Greek numeral | ΟΒ´ | |||
| Roman numeral | LXXII | |||
| Binary | 10010002 | |||
| Ternary | 22003 | |||
| Senary | 2006 | |||
| Octal | 1108 | |||
| Duodecimal | 6012 | |||
| Hexadecimal | 4816 | |||
72 (seventy-two) is the natural number following 71 and preceding 73. It is half a gross or six dozen (i.e., 60 in duodecimal).