169 (number)

169 is a natural number. It comes after 168 and before 170.

← 168 169 170 →
Cardinalone hundred sixty-nine
Ordinal169th
(one hundred sixty-ninth)
Factorization132
Greek numeralΡΞΘ´
Roman numeralCLXIX
Binary101010012
Ternary200213
Quaternary22214
Quinary11345
Senary4416
Octal2518
Duodecimal12112
HexadecimalA916
Vigesimal8920
Base 364P36

Mathematics

  • 169 is a square number because it equals 13×13.
  • 169 is the 13th square number (after 144 and before 196).
  • It is also the sum of the first 13 odd numbers (1 + 3 + 5 + ... + 25 = 169).
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