The Natural Number 861

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Properties of the Number 861

  • Because 861 is not divisible by 2 ...
    • 861 is an odd number
    • 861 has parity 1
    • 861 is not an even number
  • Because 861 can be factored as 3 x 287 ...
    • 861 is a composite number
    • 861 is not a prime number

Alternative Representations of the Number 861

  • Base 2 (binary): 1101011101
  • Base 8 (octal): 1535
  • Base 16 (hexadecimal): 35D
  • Roman numeral: DCCCLXI
  • Words: eight hundred sixty-one

Divisors of the Number 861

  • 861 has 8 positive divisors: 1, 3, 7, 21, 41, 123, 287, 861
    • The sum of the positive divisors is 1344
  • 861 has 7 proper divisors: 1, 3, 7, 21, 41, 123, 287
    • The sum of the proper divisors is 483
  • 861 is a deficient number since the sum of the proper divisors is less than 861
  • 861 is not a perfect number
  • 861 is not an abundant number

More Properties of the Number 861

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

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