21355639828338816

21,355,639,828,338,816 is an even composite number composed of eight prime numbers multiplied together.

What does the number 21355639828338816 look like?

This visualization shows the relationship between its 8 prime factors (large circles) and 8640 divisors.

21355639828338816 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of eight thousand, six hundred forty divisors.

Prime factorization of 21355639828338816:

27 × 34 × 7 × 112 × 132 × 23 × 372 × 457

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 7 × 11 × 11 × 13 × 13 × 23 × 37 × 37 × 457)

See below for interesting mathematical facts about the number 21355639828338816 from the Numbermatics database.


Names of 21355639828338816

  • Cardinal: 21355639828338816 can be written as Twenty-one quadrillion, three hundred fifty-five trillion, six hundred thirty-nine billion, eight hundred twenty-eight million, three hundred thirty-eight thousand, eight hundred sixteen.

Scientific notation

  • Scientific notation: 2.1355639828338816 × 1016

Factors of 21355639828338816

  • Number of distinct prime factors ω(n): 8
  • Total number of prime factors Ω(n): 20
  • Sum of prime factors: 553

Divisors of 21355639828338816

Bases of 21355639828338816

  • Binary: 10010111101111011010111010111011110101101011000100000002
  • Hexadecimal: 0x4BDED75DEB5880
  • Base-36: 5U9XXHZIG00

Squares and roots of 21355639828338816

  • 21355639828338816 squared (213556398283388162) is 456063352477731134512042092281856
  • 21355639828338816 cubed (213556398283388163) is 9739524694419159060094086403617687448899337322496
  • The square root of 21355639828338816 is 146135689.7829507493
  • The cube root of 21355639828338816 is 277441.1414419311

Scales and comparisons

How big is 21355639828338816?
  • 21,355,639,828,338,816 seconds is equal to 679,043,289 years, 10 weeks, 6 days, 10 hours, 33 minutes, 36 seconds.
  • To count from 1 to 21,355,639,828,338,816 would take you about two billion, thirty-seven million, one hundred twenty-nine thousand, eight hundred sixty-seven 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 21355639828338816 cubic inches would be around 23120.1 feet tall.

Recreational maths with 21355639828338816

  • 21355639828338816 backwards is 61883382893655312
  • 21355639828338816 is a Harshad number.
  • The number of decimal digits it has is: 17
  • The sum of 21355639828338816's digits is 81
  • More coming soon!

Copy this link to share with anyone:


Share this page on social media:

Link to this page

HTML: To link to this page, just copy and paste the link below into your blog, web page or email.

BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:

Cite this page

MLA style:
"Number 21355639828338816 - Facts about the integer". Numbermatics.com. 2024. Web. 14 June 2024.

APA style:
Numbermatics. (2024). Number 21355639828338816 - Facts about the integer. Retrieved 14 June 2024, from https://numbermatics.com/n/21355639828338816/

Chicago style:
Numbermatics. 2024. "Number 21355639828338816 - Facts about the integer". https://numbermatics.com/n/21355639828338816/

The information we have on file for 21355639828338816 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!

Keywords: Divisors of 21355639828338816, math, Factors of 21355639828338816, curriculum, school, college, exams, university, Prime factorization of 21355639828338816, STEM, science, technology, engineering, physics, economics, calculator, twenty-one quadrillion, three hundred fifty-five trillion, six hundred thirty-nine billion, eight hundred twenty-eight million, three hundred thirty-eight thousand, eight hundred sixteen.

Oh no. Javascript is switched off in your browser.
Some bits of this website may not work unless you switch it on.