The Natural Number 281

List of Numbers
    Previous: 280
    Next: 282

Contact Us

Properties of the Number 281

  • Because 281 is not divisible by 2 ...
    • 281 is an odd number
    • 281 has parity 1
    • 281 is not an even number
  • Because 281 has only 1 and itself as divisors ...
    • 281 is a prime number
    • 281 is not a composite number

Alternative Representations of the Number 281

  • Base 2 (binary): 100011001
  • Base 8 (octal): 431
  • Base 16 (hexadecimal): 119
  • Roman numeral: CCLXXXI
  • Words: two hundred eighty-one

Divisors of the Number 281

  • 281 has 2 positive divisors: 1, 281
    • The sum of the positive divisors is 282
  • 281 has 1 proper divisor: 1
    • The sum of the proper divisors is 1
  • 281 is a deficient number since the sum of the proper divisors is less than 281
  • 281 is not a perfect number
  • 281 is not an abundant number

More Properties of the Number 281

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

5:41 pm, Saturday, March 25, 2017 (UTC; +0000)
Copyright © 2017 D. A. Resler.  All rights reserved.