21438987181744704

21,438,987,181,744,704 is an even composite number composed of seven prime numbers multiplied together.

What does the number 21438987181744704 look like?

This visualization shows the relationship between its 7 prime factors (large circles) and 2688 divisors.

21438987181744704 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two thousand, six hundred eighty-eight divisors.

Prime factorization of 21438987181744704:

26 × 3 × 113 × 132 × 19 × 313 × 877

(2 × 2 × 2 × 2 × 2 × 2 × 3 × 11 × 11 × 11 × 13 × 13 × 19 × 31 × 31 × 31 × 877)

See below for interesting mathematical facts about the number 21438987181744704 from the Numbermatics database.


Names of 21438987181744704

  • Cardinal: 21438987181744704 can be written as Twenty-one quadrillion, four hundred thirty-eight trillion, nine hundred eighty-seven billion, one hundred eighty-one million, seven hundred forty-four thousand, seven hundred four.

Scientific notation

  • Scientific notation: 2.1438987181744704 × 1016

Factors of 21438987181744704

  • Number of distinct prime factors ω(n): 7
  • Total number of prime factors Ω(n): 17
  • Sum of prime factors: 956

Divisors of 21438987181744704

Bases of 21438987181744704

  • Binary: 10011000010101010100101001011110100111111100010010000002
  • Hexadecimal: 0x4C2AA52F4FE240
  • Base-36: 5V3HIQTRJUO

Squares and roots of 21438987181744704

  • 21438987181744704 squared (214389871817447042) is 459630171379013725780833432047616
  • 21438987181744704 cubed (214389871817447043) is 9854005352537796786584974202808963785790083825664
  • The square root of 21438987181744704 is 146420583.1901536445
  • The cube root of 21438987181744704 is 277801.6077659379

Scales and comparisons

How big is 21438987181744704?
  • 21,438,987,181,744,704 seconds is equal to 681,693,477 years, 12 weeks, 2 days, 15 hours, 18 minutes, 24 seconds.
  • To count from 1 to 21,438,987,181,744,704 would take you about two billion, forty-five million, eighty thousand, four hundred thirty-one 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 21438987181744704 cubic inches would be around 23150.1 feet tall.

Recreational maths with 21438987181744704

  • 21438987181744704 backwards is 40744718178983412
  • 21438987181744704 is a Harshad number.
  • The number of decimal digits it has is: 17
  • The sum of 21438987181744704's digits is 78
  • More coming soon!

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"Number 21438987181744704 - Facts about the integer". Numbermatics.com. 2024. Web. 21 May 2024.

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Numbermatics. (2024). Number 21438987181744704 - Facts about the integer. Retrieved 21 May 2024, from https://numbermatics.com/n/21438987181744704/

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The information we have on file for 21438987181744704 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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