The Natural Number 999

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Properties of the Number 999

  • Because 999 is not divisible by 2 ...
    • 999 is an odd number
    • 999 has parity 1
    • 999 is not an even number
  • Because 999 can be factored as 3 x 333 ...
    • 999 is a composite number
    • 999 is not a prime number

Alternative Representations of the Number 999

  • Base 2 (binary): 1111100111
  • Base 8 (octal): 1747
  • Base 16 (hexadecimal): 3E7
  • Roman numeral: CMXCIX
  • Words: nine hundred ninety-nine

Divisors of the Number 999

  • 999 has 8 positive divisors: 1, 3, 9, 27, 37, 111, 333, 999
    • The sum of the positive divisors is 1520
  • 999 has 7 proper divisors: 1, 3, 9, 27, 37, 111, 333
    • The sum of the proper divisors is 521
  • 999 is a deficient number since the sum of the proper divisors is less than 999
  • 999 is not a perfect number
  • 999 is not an abundant number

More Properties of the Number 999

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

2:02 am, Wednesday, April 26, 2017 (UTC; +0000)
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