81040

81,040 is an even composite number composed of three prime numbers multiplied together.

What does the number 81040 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 20 divisors.

81040 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.

Prime factorization of 81040:

24 × 5 × 1013

(2 × 2 × 2 × 2 × 5 × 1013)

See below for interesting mathematical facts about the number 81040 from the Numbermatics database.


Names of 81040

  • Cardinal: 81040 can be written as Eighty-one thousand and forty.

Scientific notation

  • Scientific notation: 8.104 × 104

Factors of 81040

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 6
  • Sum of prime factors: 1020

Divisors of 81040

Bases of 81040

  • Binary: 100111100100100002
  • Hexadecimal: 0x13C90
  • Base-36: 1QJ4

Squares and roots of 81040

  • 81040 squared (810402) is 6567481600
  • 81040 cubed (810403) is 532228708864000
  • The square root of 81040 is 284.6752535785
  • The cube root of 81040 is 43.2746081571

Scales and comparisons

How big is 81040?
  • 81,040 seconds is equal to 22 hours, 30 minutes, 40 seconds.
  • To count from 1 to 81,040 would take you about twenty-two 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 81040 cubic inches would be around 3.6 feet tall.

Recreational maths with 81040

  • 81040 backwards is 04018
  • The number of decimal digits it has is: 5
  • The sum of 81040's digits is 13
  • More coming soon!

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"Number 81040 - Facts about the integer". Numbermatics.com. 2024. Web. 29 March 2024.

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Numbermatics. (2024). Number 81040 - Facts about the integer. Retrieved 29 March 2024, from https://numbermatics.com/n/81040/

Chicago style:
Numbermatics. 2024. "Number 81040 - Facts about the integer". https://numbermatics.com/n/81040/

The information we have on file for 81040 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 81040, math, Factors of 81040, curriculum, school, college, exams, university, Prime factorization of 81040, STEM, science, technology, engineering, physics, economics, calculator, eighty-one thousand and forty.

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