The Natural Number 169

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Properties of the Number 169

• Because 169 is not divisible by 2 ...
• 169 is an odd number
• 169 has parity 1
• 169 is not an even number

• Because 169 can be factored as 13 x 13 ...
• 169 is a composite number
• 169 is not a prime number

Alternative Representations of the Number 169

• Base 2 (binary): 10101001
• Base 8 (octal): 251
• Base 16 (hexadecimal): A9

• Roman numeral: CLXIX

• Words: one hundred sixty-nine

Divisors of the Number 169

• 169 has 3 positive divisors: 1, 13, 169
• The sum of the positive divisors is 183
• 169 has 2 proper divisors: 1, 13
• The sum of the proper divisors is 14

• 169 is a deficient number since the sum of the proper divisors is less than 169
• 169 is not a perfect number
• 169 is not an abundant number

More Properties of the Number 169

• 169 is a square number (i.e., square of the natural number 13)
• 169 is not a cube number

• 169 is not a palindromic number

• 169 is not a Fibonacci number
• 169 is not a Lucas number