The Natural Number 99

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Properties of the Number 99

  • Because 99 is not divisible by 2 ...
    • 99 is an odd number
    • 99 has parity 1
    • 99 is not an even number
  • Because 99 can be factored as 3 x 33 ...
    • 99 is a composite number
    • 99 is not a prime number

Alternative Representations of the Number 99

  • Base 2 (binary): 1100011
  • Base 8 (octal): 143
  • Base 16 (hexadecimal): 63
  • Roman numeral: XCIX
  • Words: ninety-nine

Divisors of the Number 99

  • 99 has 6 positive divisors: 1, 3, 9, 11, 33, 99
    • The sum of the positive divisors is 156
  • 99 has 5 proper divisors: 1, 3, 9, 11, 33
    • The sum of the proper divisors is 57
  • 99 is a deficient number since the sum of the proper divisors is less than 99
  • 99 is not a perfect number
  • 99 is not an abundant number

More Properties of the Number 99

  • 99 is not a square number
  • 99 is not a cube number
  • 99 is a palindromic number (i.e., the digits are the same forwards and backwards)
  • 99 is not a Fibonacci number
  • 99 is not a Lucas number

12:03 am, Friday, March 24, 2017 (UTC; +0000)
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