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19 (number) Facts for Kids. Kiddle Encyclopedia.
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| Cardinal | nineteen | |||
| Ordinal | 19th (nineteenth) |
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| Factorization | prime | |||
| Prime | 8th | |||
| Divisors | 1, 19 | |||
| Roman numeral | XIX | |||
| Binary | 100112 | |||
| Ternary | 2013 | |||
| Quaternary | 1034 | |||
| Quinary | 345 | |||
| Senary | 316 | |||
| Octal | 238 | |||
| Duodecimal | 1712 | |||
| Hexadecimal | 1316 | |||
| Vigesimal | J20 | |||
| Base 36 | J36 | |||
This article is about the number nineteen. For the year, see 19.
Nineteen 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.
In Roman numerals, 19 is written as XIX.