The Natural Number 639

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Properties of the Number 639

  • Because 639 is not divisible by 2 ...
    • 639 is an odd number
    • 639 has parity 1
    • 639 is not an even number
  • Because 639 can be factored as 3 x 213 ...
    • 639 is a composite number
    • 639 is not a prime number

Alternative Representations of the Number 639

  • Base 2 (binary): 1001111111
  • Base 8 (octal): 1177
  • Base 16 (hexadecimal): 27F
  • Roman numeral: DCXXXIX
  • Words: six hundred thirty-nine

Divisors of the Number 639

  • 639 has 6 positive divisors: 1, 3, 9, 71, 213, 639
    • The sum of the positive divisors is 936
  • 639 has 5 proper divisors: 1, 3, 9, 71, 213
    • The sum of the proper divisors is 297
  • 639 is a deficient number since the sum of the proper divisors is less than 639
  • 639 is not a perfect number
  • 639 is not an abundant number

More Properties of the Number 639

  • 639 is not a square number
  • 639 is not a cube number
  • 639 is not a palindromic number
  • 639 is not a Fibonacci number
  • 639 is not a Lucas number

4:52 am, Tuesday, April 25, 2017 (UTC; +0000)
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