The number 247

Representation numerals

Greek numeral

σμζʹ

Arabic numeral

٢٤٧

Roman numeral

CCXLVII

Maya numeral

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Chinese numeral

二百四十七

Hebrew numeral

רמז
Numeral systems
Binary: 11110111
Septimal (base 7): 502
Octal: 367
Hexadecimal: f7
Base 24: A7
Factorization
247 = 13 × 19
247 has 4 divisors: 1, 13, 19, 247
Sum of all divisors other than 247: 33
Sums & differences
Difference of 2 squares: 247 = 162 - 32 = 1242 - 1232
Characteristics
247 is a pentagonal number
Related primes
The 247th prime number is: 1567
Previous prime number: 241 — Next prime number: 251
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