19 (number)
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.
| ||||
|---|---|---|---|---|
| Cardinal | nineteen | |||
| Ordinal | 19th (nineteenth) | |||
| 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 | |||
In Roman numerals, 19 is written as XIX.
19 (number) Media
Centered triangular number 19
A 19x19 Go board
