11 (number)
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|---|---|---|---|---|
| Cardinal | eleven, 'leven, oneteen, enteen | |||
| Ordinal | 11th (eleventh, 'leventh, oneteenth, enteenth) | |||
| Factorization | prime | |||
| Prime | 5th | |||
| Divisors | 1, 11 | |||
| Roman numeral | XI | |||
| Greek prefix | hendeca-/hendeka- | |||
| Latin prefix | undeca- | |||
| Binary | 10112 | |||
| Ternary | 1023 | |||
| Quaternary | 234 | |||
| Quinary | 215 | |||
| Senary | 156 | |||
| Octal | 138 | |||
| Duodecimal | B12 | |||
| Hexadecimal | B16 | |||
| Vigesimal | B20 | |||
| Base 36 | B36 | |||
| Hebrew numeral | יא | |||
11 (eleven /ɪˈlɛvən/ (
listen) or /iˈlɛvən/) is a number. It comes between ten and twelve, is an odd number, and is the 5th prime number, after 2, 3, 5, and 7.
In Roman numerals, 11 is written as XI.
11 (number) Media
Copper engraving of a hendecagon, by Anton Ernst Burkhard von Birckenstein (1698)
