18638438321664000

18,638,438,321,664,000 is an even composite number composed of seven prime numbers multiplied together.

What does the number 18638438321664000 look like?

This visualization shows the relationship between its 7 prime factors (large circles) and 4992 divisors.

18638438321664000 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of four thousand, nine hundred ninety-two divisors.

Prime factorization of 18638438321664000:

212 × 33 × 53 × 7 × 672 × 107 × 401

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 5 × 5 × 7 × 67 × 67 × 107 × 401)

See below for interesting mathematical facts about the number 18638438321664000 from the Numbermatics database.


Names of 18638438321664000

  • Cardinal: 18638438321664000 can be written as Eighteen quadrillion, six hundred thirty-eight trillion, four hundred thirty-eight billion, three hundred twenty-one million, six hundred sixty-four thousand.

Scientific notation

  • Scientific notation: 1.8638438321664 × 1016

Factors of 18638438321664000

  • Number of distinct prime factors ω(n): 7
  • Total number of prime factors Ω(n): 23
  • Sum of prime factors: 592

Divisors of 18638438321664000

Bases of 18638438321664000

  • Binary: 10000100011011110001111100101110101010010110000000000002
  • Hexadecimal: 0x42378F9754B000
  • Base-36: 53IRWCYI2O0

Squares and roots of 18638438321664000

  • 18638438321664000 squared (186384383216640002) is 347391383070473145131728896000000
  • 18638438321664000 cubed (186384383216640003) is 6474832866836565190183404616556891602944000000000
  • The square root of 18638438321664000 is 136522665.9630700297
  • The cube root of 18638438321664000 is 265136.6961617013

Scales and comparisons

How big is 18638438321664000?
  • 18,638,438,321,664,000 seconds is equal to 592,644,686 years, 8 weeks.
  • To count from 1 to 18,638,438,321,664,000 would take you about one billion, seven hundred seventy-seven million, nine hundred thirty-four thousand and fifty-eight 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 18638438321664000 cubic inches would be around 22094.7 feet tall.

Recreational maths with 18638438321664000

  • 18638438321664000 backwards is 00046612383483681
  • 18638438321664000 is a Harshad number.
  • The number of decimal digits it has is: 17
  • The sum of 18638438321664000's digits is 63
  • More coming soon!

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"Number 18638438321664000 - Facts about the integer". Numbermatics.com. 2024. Web. 9 June 2024.

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Numbermatics. (2024). Number 18638438321664000 - Facts about the integer. Retrieved 9 June 2024, from https://numbermatics.com/n/18638438321664000/

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The information we have on file for 18638438321664000 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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