20815721655428448000

20,815,721,655,428,448,000 is an even composite number composed of seven prime numbers multiplied together.

What does the number 20815721655428448000 look like?

This visualization shows the relationship between its 7 prime factors (large circles) and 5832 divisors.

20815721655428448000 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of five thousand, eight hundred thirty-two divisors.

Prime factorization of 20815721655428448000:

28 × 32 × 53 × 72 × 232 × 11872 × 1979

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 5 × 7 × 7 × 23 × 23 × 1187 × 1187 × 1979)

See below for interesting mathematical facts about the number 20815721655428448000 from the Numbermatics database.


Names of 20815721655428448000

  • Cardinal: 20815721655428448000 can be written as Twenty quintillion, eight hundred fifteen quadrillion, seven hundred twenty-one trillion, six hundred fifty-five billion, four hundred twenty-eight million, four hundred forty-eight thousand.

Scientific notation

  • Scientific notation: 2.0815721655428448 × 1019

Factors of 20815721655428448000

  • Number of distinct prime factors ω(n): 7
  • Total number of prime factors Ω(n): 20
  • Sum of prime factors: 3206

Divisors of 20815721655428448000

Bases of 20815721655428448000

  • Binary: 100100000111000000100110010001111001001110011011111111111000000002
  • Hexadecimal: 0x120E04C8F2737FF00
  • Base-36: 4E5BXHV5FMPS0

Squares and roots of 20815721655428448000

  • 20815721655428448000 squared (208157216554284480002) is 433294268036272847648466447688704000000
  • 20815721655428448000 cubed (208157216554284480003) is 9019332878335663102836303891723970704264449851392000000000
  • The square root of 20815721655428448000 is 4562424975.3205200513
  • The cube root of 20815721655428448000 is 2750830.4557658311

Scales and comparisons

How big is 20815721655428448000?
  • 20,815,721,655,428,448,000 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
  • To count from 1 to 20,815,721,655,428,448,000 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 20815721655428448000 cubic inches would be around 229235.9 feet tall.

Recreational maths with 20815721655428448000

  • 20815721655428448000 backwards is 00084482455612751802
  • 20815721655428448000 is a Harshad number.
  • The number of decimal digits it has is: 20
  • The sum of 20815721655428448000's digits is 72
  • 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 20815721655428448000 - Facts about the integer". Numbermatics.com. 2024. Web. 10 May 2024.

APA style:
Numbermatics. (2024). Number 20815721655428448000 - Facts about the integer. Retrieved 10 May 2024, from https://numbermatics.com/n/20815721655428448000/

Chicago style:
Numbermatics. 2024. "Number 20815721655428448000 - Facts about the integer". https://numbermatics.com/n/20815721655428448000/

The information we have on file for 20815721655428448000 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 20815721655428448000, math, Factors of 20815721655428448000, curriculum, school, college, exams, university, Prime factorization of 20815721655428448000, STEM, science, technology, engineering, physics, economics, calculator, twenty quintillion, eight hundred fifteen quadrillion, seven hundred twenty-one trillion, six hundred fifty-five billion, four hundred twenty-eight million, four hundred forty-eight thousand.

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