19 (number)
19 (also written as nineteen or ten-nine) is a number. It comes between eighteen and twenty, and is an odd number. It is also the 8th prime number, after 2, 3, 5, 7, 11, 13, and 17.
| ||||
---|---|---|---|---|
Cardinal | nineteen | |||
Ordinal | 19th (nineteenth) | |||
Factorization | prime | |||
Prime | 8th | |||
Divisors | 1, 19 | |||
Greek numeral | ΙΘ´ | |||
Roman numeral | XIX | |||
Binary | 100112 | |||
Ternary | 2013 | |||
Quaternary | 1034 | |||
Quinary | 345 | |||
Senary | 316 | |||
Octal | 238 | |||
Duodecimal | 1712 | |||
Hexadecimal | 1316 | |||
Vigesimal | J20 | |||
Base 36 | J36 |

The Simple English Wiktionary has a definition for:
nineteen.
In Roman numerals, 19 is written as XIX.
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