89 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 89 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

89 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 89:


See below for interesting mathematical facts about the number 89 from the Numbermatics database.

Names of 89

  • Cardinal: 89 can be written as Eighty-nine.

Scientific notation

  • Scientific notation: 8.9 × 101

Factors of 89

  • Number of distinct prime factors ω(n): 1
  • Total number of prime factors Ω(n): 1
  • Sum of prime factors: 89

Divisors of 89

  • Number of divisors d(n): 2
  • Complete list of divisors:
    1 89
  • Sum of all divisors σ(n): 90
  • Sum of proper divisors (its aliquot sum) s(n): 1
  • 89 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 88

Bases of 89

  • Binary: 10110012
  • Hexadecimal: 0x59
  • Base-36: 2H

Squares and roots of 89

  • 89 squared (892) is 7921
  • 89 cubed (893) is 704969
  • The square root of 89 is 9.4339811321
  • The cube root of 89 is 4.4647450955

Scales and comparisons

How big is 89?
  • 89 seconds is equal to 1 minute, 29 seconds.
  • To count from 1 to 89 would take you about forty-four seconds.

    This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

  • A cube with a volume of 89 cubic inches would be around 0.4 feet tall.

Recreational maths with 89

  • 89 backwards is 98
  • The number of decimal digits it has is: 2
  • The sum of 89's digits is 17
  • More coming soon!

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The information we have on file for 89 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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