The number 72

Representation numerals

Greek numeral

οβʹ

Arabic numeral

٧٢

Roman numeral

LXXII

Maya numeral

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Chinese numeral

七十二

Hebrew numeral

עב
Numeral systems
Binary: 1001000
Septimal (base 7): 132
Octal: 110
Hexadecimal: 48
Base 24: 30
Factorization
72 = 2 × 2 × 2 × 3 × 3
72 has 12 divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
Sum of all divisors other than 72: 123
Sums & differences
Sum of 2 squares: 72 = 62 + 62
Difference of 2 squares: 72 = 92 - 32 = 112 - 72 = 192 - 172
Goldbach conjecture: 72 = 67 + 5 = 61 + 11 = 59 + 13 = 53 + 19 = 43 + 29 = 41 + 31
Characteristics
Related primes
The 72th prime number is: 359
Previous prime number: 71 — Next prime number: 73
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