The Natural Number 77

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Properties of the Number 77

  • Because 77 is not divisible by 2 ...
    • 77 is an odd number
    • 77 has parity 1
    • 77 is not an even number
  • Because 77 can be factored as 7 x 11 ...
    • 77 is a composite number
    • 77 is not a prime number

Alternative Representations of the Number 77

  • Base 2 (binary): 1001101
  • Base 8 (octal): 115
  • Base 16 (hexadecimal): 4D
  • Roman numeral: LXXVII
  • Words: seventy-seven

Divisors of the Number 77

  • 77 has 4 positive divisors: 1, 7, 11, 77
    • The sum of the positive divisors is 96
  • 77 has 3 proper divisors: 1, 7, 11
    • The sum of the proper divisors is 19
  • 77 is a deficient number since the sum of the proper divisors is less than 77
  • 77 is not a perfect number
  • 77 is not an abundant number

More Properties of the Number 77

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

9:54 am, Saturday, March 25, 2017 (UTC; +0000)
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