The Natural Number 685

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Properties of the Number 685

  • Because 685 is not divisible by 2 ...
    • 685 is an odd number
    • 685 has parity 1
    • 685 is not an even number
  • Because 685 can be factored as 5 x 137 ...
    • 685 is a composite number
    • 685 is not a prime number

Alternative Representations of the Number 685

  • Base 2 (binary): 1010101101
  • Base 8 (octal): 1255
  • Base 16 (hexadecimal): 2AD
  • Roman numeral: DCLXXXV
  • Words: six hundred eighty-five

Divisors of the Number 685

  • 685 has 4 positive divisors: 1, 5, 137, 685
    • The sum of the positive divisors is 828
  • 685 has 3 proper divisors: 1, 5, 137
    • The sum of the proper divisors is 143
  • 685 is a deficient number since the sum of the proper divisors is less than 685
  • 685 is not a perfect number
  • 685 is not an abundant number

More Properties of the Number 685

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

5:40 pm, Saturday, March 25, 2017 (UTC; +0000)
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