72813

72,813 is an odd composite number composed of three prime numbers multiplied together.

What does the number 72813 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

72813 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 72813:

3 × 13 × 1867

See below for interesting mathematical facts about the number 72813 from the Numbermatics database.


Names of 72813

  • Cardinal: 72813 can be written as Seventy-two thousand, eight hundred thirteen.

Scientific notation

  • Scientific notation: 7.2813 × 104

Factors of 72813

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 1883

Divisors of 72813

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 104608
  • Sum of proper divisors (its aliquot sum) s(n): 31795
  • 72813 is a deficient number, because the sum of its proper divisors (31795) is less than itself. Its deficiency is 41018

Bases of 72813

  • Binary: 100011100011011012
  • Hexadecimal: 0x11C6D
  • Base-36: 1K6L

Squares and roots of 72813

  • 72813 squared (728132) is 5301732969
  • 72813 cubed (728133) is 386035082671797
  • The square root of 72813 is 269.8388407919
  • The cube root of 72813 is 41.7576748533

Scales and comparisons

How big is 72813?
  • 72,813 seconds is equal to 20 hours, 13 minutes, 33 seconds.
  • To count from 1 to 72,813 would take you about twenty hours.

    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 72813 cubic inches would be around 3.5 feet tall.

Recreational maths with 72813

  • 72813 backwards is 31827
  • The number of decimal digits it has is: 5
  • The sum of 72813's digits is 21
  • More coming soon!

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The information we have on file for 72813 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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