The Natural Number 66

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Properties of the Number 66

  • Because 66 is divisible by 2 ...
    • 66 is an even number
    • 66 has parity 0
    • 66 is not an odd number
  • Because 66 can be factored as 2 x 33 ...
    • 66 is a composite number
    • 66 is not a prime number

Alternative Representations of the Number 66

  • Base 2 (binary): 1000010
  • Base 8 (octal): 102
  • Base 16 (hexadecimal): 42
  • Roman numeral: LXVI
  • Words: sixty-six

Divisors of the Number 66

  • 66 has 8 positive divisors: 1, 2, 3, 6, 11, 22, 33, 66
    • The sum of the positive divisors is 144
  • 66 has 7 proper divisors: 1, 2, 3, 6, 11, 22, 33
    • The sum of the proper divisors is 78
  • 66 is not a deficient number
  • 66 is not a perfect number
  • 66 is an abundant number since the sum of the proper divisors is greater than 66

More Properties of the Number 66

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

10:53 am, Thursday, April 27, 2017 (UTC; +0000)
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