21378478621500

21,378,478,621,500 is an even composite number composed of eight prime numbers multiplied together.

What does the number 21378478621500 look like?

This visualization shows the relationship between its 8 prime factors (large circles) and 4608 divisors.

21378478621500 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of four thousand, six hundred eight divisors.

Prime factorization of 21378478621500:

22 × 33 × 53 × 7 × 112 × 133 × 23 × 37

(2 × 2 × 3 × 3 × 3 × 5 × 5 × 5 × 7 × 11 × 11 × 13 × 13 × 13 × 23 × 37)

See below for interesting mathematical facts about the number 21378478621500 from the Numbermatics database.


Names of 21378478621500

  • Cardinal: 21378478621500 can be written as Twenty-one trillion, three hundred seventy-eight billion, four hundred seventy-eight million, six hundred twenty-one thousand, five hundred.

Scientific notation

  • Scientific notation: 2.13784786215 × 1013

Factors of 21378478621500

  • Number of distinct prime factors ω(n): 8
  • Total number of prime factors Ω(n): 16
  • Sum of prime factors: 101

Divisors of 21378478621500

Bases of 21378478621500

  • Binary: 1001101110001100100001001111111000011001111002
  • Hexadecimal: 0x1371909FC33C
  • Base-36: 7KT4Y7130

Squares and roots of 21378478621500

  • 21378478621500 squared (213784786215002) is 457039348169932540262250000
  • 21378478621500 cubed (213784786215003) is 9770805934035197961093699628488375000000
  • The square root of 21378478621500 is 4623686.6915373927
  • The cube root of 21378478621500 is 27754.0009366391

Scales and comparisons

How big is 21378478621500?
  • 21,378,478,621,500 seconds is equal to 679,769 years, 25 weeks, 4 days, 3 hours, 45 minutes.
  • To count from 1 to 21,378,478,621,500 would take you about one million, six hundred ninety-nine thousand, four hundred twenty-three 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 21378478621500 cubic inches would be around 2312.8 feet tall.

Recreational maths with 21378478621500

  • 21378478621500 backwards is 00512687487312
  • 21378478621500 is a Harshad number.
  • The number of decimal digits it has is: 14
  • The sum of 21378478621500's digits is 54
  • More coming soon!

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"Number 21378478621500 - Facts about the integer". Numbermatics.com. 2024. Web. 15 June 2024.

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Numbermatics. (2024). Number 21378478621500 - Facts about the integer. Retrieved 15 June 2024, from https://numbermatics.com/n/21378478621500/

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Numbermatics. 2024. "Number 21378478621500 - Facts about the integer". https://numbermatics.com/n/21378478621500/

The information we have on file for 21378478621500 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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