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# 189 (number)

 ← 188 189 190 →
Cardinal one hundred eighty-nine
Ordinal 189th
(one hundred eighty-ninth)
Factorization 33× 7
Greek numeral ΡΠΘ´
Roman numeral CLXXXIX
Binary 101111012
Ternary 210003
Quaternary 23314
Quinary 12245
Senary 5136
Octal 2758
Duodecimal 13912
Vigesimal 9920
Base 36 5936

189 (one hundred [and] eighty-nine) is the natural number following 188 and preceding 190.

## In mathematics

189 is:

Also:

• 189 can be written as sum of two cubes in two ways: 43 + 53 and 63 + (-3)3 (The smallest number that can be written as the sum of 2 positive only cubes in two ways is 1729)
• Divisors of 189: 1, 3, 7, 9, 21, 27, 63, 189

189 is also: