159 (number)

159 (one hundred [and] fifty-nine) is a natural number following 158 and preceding 160.

← 158 159 160 →
← 150 151 152 153 154 155 156 157 158 159 → List of numbers Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	one hundred fifty-nine
Ordinal	159th (one hundred fifty-ninth)
Factorization	3 × 53
Divisors	1, 3, 53, 159
Greek numeral	ΡΝΘ´
Roman numeral	CLIX, clix
Binary	100111112
Ternary	122203
Senary	4236
Octal	2378
Duodecimal	11312
Hexadecimal	9F16

In mathematics

159 is:

• the sum of 3 consecutive prime numbers: 47 + 53 + 59.
• a Woodall number.^[1]
• equal to the sum of the squares of the digits of its own square in base 15.^[2]

Only 5 numbers (greater than 1) have this property in base 15, none in base 10.

• written CLIX in Roman numeral, which spells a proper noun with multiple meanings.

Given 159, the Mertens function returns 0.^[3]