The Natural Number 381

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Properties of the Number 381

  • Because 381 is not divisible by 2 ...
    • 381 is an odd number
    • 381 has parity 1
    • 381 is not an even number
  • Because 381 can be factored as 3 x 127 ...
    • 381 is a composite number
    • 381 is not a prime number

Alternative Representations of the Number 381

  • Base 2 (binary): 101111101
  • Base 8 (octal): 575
  • Base 16 (hexadecimal): 17D
  • Roman numeral: CCCLXXXI
  • Words: three hundred eighty-one

Divisors of the Number 381

  • 381 has 4 positive divisors: 1, 3, 127, 381
    • The sum of the positive divisors is 512
  • 381 has 3 proper divisors: 1, 3, 127
    • The sum of the proper divisors is 131
  • 381 is a deficient number since the sum of the proper divisors is less than 381
  • 381 is not a perfect number
  • 381 is not an abundant number

More Properties of the Number 381

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

12:14 am, Friday, March 24, 2017 (UTC; +0000)
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