12 (number)
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| Cardinal | twelve | |||
| Ordinal | 12th (twelfth) |
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| Factorization | 22· 3 | |||
| Roman numeral | XII | |||
| Greek prefix | dodeca-/dodeka- | |||
| Latin prefix | duodeca- | |||
| Binary | 11002 | |||
| Ternary | 1103 | |||
| Quaternary | 304 | |||
| Quinary | 225 | |||
| Senary | 206 | |||
| Octal | 148 | |||
| Duodecimal | 1012 | |||
| Hexadecimal | C16 | |||
| Vigesimal | C20 | |||
| Base 36 | C36 | |||
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The Simple English Wiktionary has a definition for: twelve. |
This article is about the number twelve. For the year, see 12.
Twelve is a number. It comes between eleven and thirteen, and is an even number. It is divisible by 1, 2, 3, 4, 6, and 12. Its ordinal is 12th (twelfth). In Roman numerals, it is written as XII. It is the base of duodecimal numbers.
Mathematics[change | change source]
- Twelve is the first abundant number[1].
