21408721487462400

21,408,721,487,462,400 is an even composite number composed of eight prime numbers multiplied together.

What does the number 21408721487462400 look like?

This visualization shows the relationship between its 8 prime factors (large circles) and 11016 divisors.

21408721487462400 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of eleven thousand and sixteen divisors.

Prime factorization of 21408721487462400:

216 × 3 × 52 × 72 × 132 × 192 × 31 × 47

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 7 × 7 × 13 × 13 × 19 × 19 × 31 × 47)

See below for interesting mathematical facts about the number 21408721487462400 from the Numbermatics database.


Names of 21408721487462400

  • Cardinal: 21408721487462400 can be written as Twenty-one quadrillion, four hundred eight trillion, seven hundred twenty-one billion, four hundred eighty-seven million, four hundred sixty-two thousand, four hundred.

Scientific notation

  • Scientific notation: 2.14087214874624 × 1016

Factors of 21408721487462400

  • Number of distinct prime factors ω(n): 8
  • Total number of prime factors Ω(n): 27
  • Sum of prime factors: 127

Divisors of 21408721487462400

Bases of 21408721487462400

  • Binary: 10011000000111100011110011001110101101100000000000000002
  • Hexadecimal: 0x4C0F1E675B0000
  • Base-36: 5USRAVKTREO

Squares and roots of 21408721487462400

  • 21408721487462400 squared (214087214874624002) is 458333355727734276800391413760000
  • 21408721487462400 cubed (214087214874624003) is 9812331161189092677251449599366520450842624000000
  • The square root of 21408721487462400 is 146317194.7771771629
  • The cube root of 21408721487462400 is 277670.8208330717

Scales and comparisons

How big is 21408721487462400?
  • 21,408,721,487,462,400 seconds is equal to 680,731,121 years, 40 weeks, 3 days, 2 hours, 40 minutes.
  • To count from 1 to 21,408,721,487,462,400 would take you about two billion, forty-two million, one hundred ninety-three thousand, three hundred sixty-five years!

    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 21408721487462400 cubic inches would be around 23139.2 feet tall.

Recreational maths with 21408721487462400

  • 21408721487462400 backwards is 00426478412780412
  • 21408721487462400 is a Harshad number.
  • The number of decimal digits it has is: 17
  • The sum of 21408721487462400's digits is 60
  • More coming soon!

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"Number 21408721487462400 - Facts about the integer". Numbermatics.com. 2024. Web. 22 May 2024.

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Numbermatics. (2024). Number 21408721487462400 - Facts about the integer. Retrieved 22 May 2024, from https://numbermatics.com/n/21408721487462400/

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The information we have on file for 21408721487462400 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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