19 (number)

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

19 (nineteen) is the 12345678 following 18 and preceding 20. It is a prime number.

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