20,001 is an odd composite number composed of three prime numbers multiplied together.

What does the number 20001 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

20001 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 20001:

3 × 59 × 113

See below for interesting mathematical facts about the number 20001 from the Numbermatics database.

Names of 20001

  • Cardinal: 20001 can be written as Twenty thousand and one.

Scientific notation

  • Scientific notation: 2.0001 × 104

Factors of 20001

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 175

Divisors of 20001

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 27360
  • Sum of proper divisors (its aliquot sum) s(n): 7359
  • 20001 is a deficient number, because the sum of its proper divisors (7359) is less than itself. Its deficiency is 12642

Bases of 20001

  • Binary: 1001110001000012
  • Hexadecimal: 0x4E21
  • Base-36: FFL

Squares and roots of 20001

  • 20001 squared (200012) is 400040001
  • 20001 cubed (200013) is 8001200060001
  • The square root of 20001 is 141.4248917271
  • The cube root of 20001 is 27.1446285613

Scales and comparisons

How big is 20001?
  • 20,001 seconds is equal to 5 hours, 33 minutes, 21 seconds.
  • To count from 1 to 20,001 would take you about five hours.

    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 20001 cubic inches would be around 2.3 feet tall.

Recreational maths with 20001

  • 20001 backwards is 10002
  • 20001 is a Harshad number.
  • The number of decimal digits it has is: 5
  • The sum of 20001's digits is 3
  • More coming soon!

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 20001 - Facts about the integer". Numbermatics.com. 2023. Web. 29 March 2023.

APA style:
Numbermatics. (2023). Number 20001 - Facts about the integer. Retrieved 29 March 2023, from https://numbermatics.com/n/20001/

Chicago style:
Numbermatics. 2023. "Number 20001 - Facts about the integer". https://numbermatics.com/n/20001/

The information we have on file for 20001 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 20001, math, Factors of 20001, curriculum, school, college, exams, university, Prime factorization of 20001, STEM, science, technology, engineering, physics, economics, calculator, twenty thousand and one.

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