| ||||
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Cardinal | eleven | |||
Ordinal | 11th (eleventh) | |||
Numeral system | undecimal | |||
Factorization | prime | |||
Prime | 5th | |||
Divisors | 1, 11 | |||
Greek numeral | ΙΑ´ | |||
Roman numeral | XI | |||
Greek prefix | hendeca-/hendeka- | |||
Latin prefix | undeca- | |||
Binary | 10112 | |||
Ternary | 1023 | |||
Senary | 156 | |||
Octal | 138 | |||
Duodecimal | B12 | |||
Hexadecimal | B16 | |||
Bangla | ১১ | |||
Hebrew numeral | י"א | |||
Devanagari numerals | ११ | |||
Malayalam | ൰൧ | |||
Tamil numerals | கக | |||
Telugu | ౧౧ | |||
Babylonian numeral | 𒌋𒐕 |
11 (eleven) is the natural number following 10 and preceding 12. In English, it is the smallest positive integer whose name has three syllables.