The Natural Number 161

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Properties of the Number 161

  • Because 161 is not divisible by 2 ...
    • 161 is an odd number
    • 161 has parity 1
    • 161 is not an even number
  • Because 161 can be factored as 7 x 23 ...
    • 161 is a composite number
    • 161 is not a prime number

Alternative Representations of the Number 161

  • Base 2 (binary): 10100001
  • Base 8 (octal): 241
  • Base 16 (hexadecimal): A1
  • Roman numeral: CLXI
  • Words: one hundred sixty-one

Divisors of the Number 161

  • 161 has 4 positive divisors: 1, 7, 23, 161
    • The sum of the positive divisors is 192
  • 161 has 3 proper divisors: 1, 7, 23
    • The sum of the proper divisors is 31
  • 161 is a deficient number since the sum of the proper divisors is less than 161
  • 161 is not a perfect number
  • 161 is not an abundant number

More Properties of the Number 161

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

Fun Facts and Trivia about the Number 161

4:24 am, Thursday, March 23, 2017 (UTC; +0000)
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