The number 155

Representation numerals

Greek numeral

ρνεʹ

Arabic numeral

١٥٥

Roman numeral

CLV

Maya numeral

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Chinese numeral

一百五十五

Hebrew numeral

קנה
Numeral systems
Binary: 10011011
Septimal (base 7): 311
Octal: 233
Hexadecimal: 9b
Base 24: 6B
Factorization
155 = 5 × 31
155 has 4 divisors: 1, 5, 31, 155
Sum of all divisors other than 155: 37
Sums & differences
Difference of 2 squares: 155 = 182 - 132 = 782 - 772
Characteristics
Related primes
The 155th prime number is: 907
Previous prime number: 151 — Next prime number: 157
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