21137473

21,137,473 is an odd composite number composed of two prime numbers multiplied together.

What does the number 21137473 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

21137473 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 21137473:

72 × 431377

(7 × 7 × 431377)

See below for interesting mathematical facts about the number 21137473 from the Numbermatics database.


Names of 21137473

  • Cardinal: 21137473 can be written as Twenty-one million, one hundred thirty-seven thousand, four hundred seventy-three.

Scientific notation

  • Scientific notation: 2.1137473 × 107

Factors of 21137473

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 431384

Divisors of 21137473

  • Number of divisors d(n): 6
  • Complete list of divisors:
  • Sum of all divisors σ(n): 24588546
  • Sum of proper divisors (its aliquot sum) s(n): 3451073
  • 21137473 is a deficient number, because the sum of its proper divisors (3451073) is less than itself. Its deficiency is 17686400

Bases of 21137473

  • Binary: 10100001010001000010000012
  • Hexadecimal: 0x1428841
  • Base-36: CL1S1

Squares and roots of 21137473

  • 21137473 squared (211374732) is 446792764825729
  • 21137473 cubed (211374733) is 9444070003099196442817
  • The square root of 21137473 is 4597.5507610031
  • The cube root of 21137473 is 276.4931366133

Scales and comparisons

How big is 21137473?
  • 21,137,473 seconds is equal to 34 weeks, 6 days, 15 hours, 31 minutes, 13 seconds.
  • To count from 1 to 21,137,473 would take you about two days!

    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 21137473 cubic inches would be around 23 feet tall.

Recreational maths with 21137473

  • 21137473 backwards is 37473112
  • The number of decimal digits it has is: 8
  • The sum of 21137473's digits is 28
  • More coming soon!

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"Number 21137473 - Facts about the integer". Numbermatics.com. 2024. Web. 16 May 2024.

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Numbermatics. (2024). Number 21137473 - Facts about the integer. Retrieved 16 May 2024, from https://numbermatics.com/n/21137473/

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Numbermatics. 2024. "Number 21137473 - Facts about the integer". https://numbermatics.com/n/21137473/

The information we have on file for 21137473 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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