19 (number)

← 18 19 20 →
Cardinalnineteen
Ordinal19th
(nineteenth)
Numeral systemnonadecimal
Factorizationprime
Prime8th
Divisors1, 19
Greek numeralΙΘ´
Roman numeralXIX
Binary100112
Ternary2013
Senary316
Octal238
Duodecimal1712
Hexadecimal1316
Hebrew numeralי"ט
Babylonian numeral𒌋𒐝

19 (nineteen) is the natural number following 18 and preceding 20. It is a prime number.