21071715921

21,071,715,921 is an odd composite number composed of two prime numbers multiplied together.

What does the number 21071715921 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 25 divisors.

21071715921 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of twenty-five divisors.

Prime factorization of 21071715921:

34 × 1274

(3 × 3 × 3 × 3 × 127 × 127 × 127 × 127)

See below for interesting mathematical facts about the number 21071715921 from the Numbermatics database.


Names of 21071715921

  • Cardinal: 21071715921 can be written as Twenty-one billion, seventy-one million, seven hundred fifteen thousand, nine hundred twenty-one.

Scientific notation

  • Scientific notation: 2.1071715921 × 1010

Factors of 21071715921

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 8
  • Sum of prime factors: 130

Divisors of 21071715921

Bases of 21071715921

  • Binary: 100111001111111100011011110010100012
  • Hexadecimal: 0x4E7F8DE51
  • Base-36: 9OHK029

Squares and roots of 21071715921

  • 21071715921 squared (210717159212) is 444017211855324878241
  • 21071715921 cubed (210717159213) is 9356204552249879185458266174961
  • 21071715921 is a perfect square number. Its square root is 145161
  • The cube root of 21071715921 is 2762.0612237221

Scales and comparisons

How big is 21071715921?
  • 21,071,715,921 seconds is equal to 670 years, 5 days, 14 hours, 25 minutes, 21 seconds.
  • To count from 1 to 21,071,715,921 would take you about one thousand, three hundred forty 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 21071715921 cubic inches would be around 230.2 feet tall.

Recreational maths with 21071715921

  • 21071715921 backwards is 12951717012
  • The number of decimal digits it has is: 11
  • The sum of 21071715921's digits is 36
  • 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 21071715921 - Facts about the integer". Numbermatics.com. 2024. Web. 28 March 2024.

APA style:
Numbermatics. (2024). Number 21071715921 - Facts about the integer. Retrieved 28 March 2024, from https://numbermatics.com/n/21071715921/

Chicago style:
Numbermatics. 2024. "Number 21071715921 - Facts about the integer". https://numbermatics.com/n/21071715921/

The information we have on file for 21071715921 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 21071715921, math, Factors of 21071715921, curriculum, school, college, exams, university, Prime factorization of 21071715921, STEM, science, technology, engineering, physics, economics, calculator, twenty-one billion, seventy-one million, seven hundred fifteen thousand, nine hundred twenty-one.

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