The Natural Number 681

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Properties of the Number 681

  • Because 681 is not divisible by 2 ...
    • 681 is an odd number
    • 681 has parity 1
    • 681 is not an even number
  • Because 681 can be factored as 3 x 227 ...
    • 681 is a composite number
    • 681 is not a prime number

Alternative Representations of the Number 681

  • Base 2 (binary): 1010101001
  • Base 8 (octal): 1251
  • Base 16 (hexadecimal): 2A9
  • Roman numeral: DCLXXXI
  • Words: six hundred eighty-one

Divisors of the Number 681

  • 681 has 4 positive divisors: 1, 3, 227, 681
    • The sum of the positive divisors is 912
  • 681 has 3 proper divisors: 1, 3, 227
    • The sum of the proper divisors is 231
  • 681 is a deficient number since the sum of the proper divisors is less than 681
  • 681 is not a perfect number
  • 681 is not an abundant number

More Properties of the Number 681

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

11:03 am, Thursday, April 27, 2017 (UTC; +0000)
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