Back 12 (ахыԥхьаӡара) Abkhazian አሥራ ሁለት Amharic 12 (عدد) Arabic 12 ARY Doce AST 12 (ədəd) Azerbaijani ۱۲ (سایی) AZB 12 (angka) BAN 12 (число) Bulgarian Twelef Bislama
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| Cardinal | twelve | |||
| Ordinal | 12th (twelfth) | |||
| Numeral system | duodecimal | |||
| Factorization | 22 × 3 | |||
| Divisors | 1, 2, 3, 4, 6, 12 | |||
| Greek numeral | ΙΒ´ | |||
| Roman numeral | XII | |||
| Greek prefix | dodeca- | |||
| Latin prefix | duodeca- | |||
| Binary | 11002 | |||
| Ternary | 1103 | |||
| Senary | 206 | |||
| Octal | 148 | |||
| Duodecimal | 1012 | |||
| Hexadecimal | C16 | |||
| Malayalam | ൰൨ | |||
| Bengali | ১২ | |||
| Hebrew numeral | י"ב | |||
| Babylonian numeral | 𒌋𒐖 | |||
12 (twelve) is the natural number following 11 and preceding 13. Twelve is a superior highly composite number, divisible by the numbers 2, 3, 4, and 6.
It is the number of years required for an orbital period of Jupiter. It is central to many systems of timekeeping, including the Western calendar and units of time of day, and frequently appears in the world's major religions.