19840

19,840 is an even composite number composed of three prime numbers multiplied together.

What does the number 19840 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 32 divisors.

19840 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 19840:

27 × 5 × 31

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 31)

See below for interesting mathematical facts about the number 19840 from the Numbermatics database.


Names of 19840

  • Cardinal: 19840 can be written as Nineteen thousand, eight hundred forty.

Scientific notation

  • Scientific notation: 1.984 × 104

Factors of 19840

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 9
  • Sum of prime factors: 38

Divisors of 19840

Bases of 19840

  • Binary: 1001101100000002
  • Hexadecimal: 0x4D80
  • Base-36: FB4

Squares and roots of 19840

  • 19840 squared (198402) is 393625600
  • 19840 cubed (198403) is 7809531904000
  • The square root of 19840 is 140.8545348933
  • The cube root of 19840 is 27.0715978085

Scales and comparisons

How big is 19840?
  • 19,840 seconds is equal to 5 hours, 30 minutes, 40 seconds.
  • To count from 1 to 19,840 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 19840 cubic inches would be around 2.3 feet tall.

Recreational maths with 19840

  • 19840 backwards is 04891
  • The number of decimal digits it has is: 5
  • The sum of 19840's digits is 22
  • More coming soon!

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"Number 19840 - Facts about the integer". Numbermatics.com. 2024. Web. 29 March 2024.

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Numbermatics. (2024). Number 19840 - Facts about the integer. Retrieved 29 March 2024, from https://numbermatics.com/n/19840/

Chicago style:
Numbermatics. 2024. "Number 19840 - Facts about the integer". https://numbermatics.com/n/19840/

The information we have on file for 19840 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 19840, math, Factors of 19840, curriculum, school, college, exams, university, Prime factorization of 19840, STEM, science, technology, engineering, physics, economics, calculator, nineteen thousand, eight hundred forty.

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