21,113 is an odd composite number composed of two prime numbers multiplied together.

What does the number 21113 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

21113 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 21113:

43 × 491

See below for interesting mathematical facts about the number 21113 from the Numbermatics database.

Names of 21113

  • Cardinal: 21113 can be written as Twenty-one thousand, one hundred thirteen.

Scientific notation

  • Scientific notation: 2.1113 × 104

Factors of 21113

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 534

Divisors of 21113

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 21648
  • Sum of proper divisors (its aliquot sum) s(n): 535
  • 21113 is a deficient number, because the sum of its proper divisors (535) is less than itself. Its deficiency is 20578

Bases of 21113

  • Binary: 1010010011110012
  • Hexadecimal: 0x5279
  • Base-36: GAH

Squares and roots of 21113

  • 21113 squared (211132) is 445758769
  • 21113 cubed (211133) is 9411304889897
  • The square root of 21113 is 145.3031314185
  • The cube root of 21113 is 27.6386387339

Scales and comparisons

How big is 21113?
  • 21,113 seconds is equal to 5 hours, 51 minutes, 53 seconds.
  • To count from 1 to 21,113 would take you about five 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 21113 cubic inches would be around 2.3 feet tall.

Recreational maths with 21113

  • 21113 backwards is 31112
  • The number of decimal digits it has is: 5
  • The sum of 21113's digits is 8
  • More coming soon!

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The information we have on file for 21113 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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