40181

40,181 is an odd composite number composed of two prime numbers multiplied together.

What does the number 40181 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

40181 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 40181:

23 × 1747

See below for interesting mathematical facts about the number 40181 from the Numbermatics database.


Names of 40181

  • Cardinal: 40181 can be written as Forty thousand, one hundred eighty-one.

Scientific notation

  • Scientific notation: 4.0181 × 104

Factors of 40181

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 1770

Divisors of 40181

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 41952
  • Sum of proper divisors (its aliquot sum) s(n): 1771
  • 40181 is a deficient number, because the sum of its proper divisors (1771) is less than itself. Its deficiency is 38410

Bases of 40181

  • Binary: 10011100111101012
  • Hexadecimal: 0x9CF5
  • Base-36: V05

Squares and roots of 40181

  • 40181 squared (401812) is 1614512761
  • 40181 cubed (401813) is 64872737249741
  • The square root of 40181 is 200.4519892643
  • The cube root of 40181 is 34.2510255965

Scales and comparisons

How big is 40181?
  • 40,181 seconds is equal to 11 hours, 9 minutes, 41 seconds.
  • To count from 1 to 40,181 would take you about eleven 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 40181 cubic inches would be around 2.9 feet tall.

Recreational maths with 40181

  • 40181 backwards is 18104
  • The number of decimal digits it has is: 5
  • The sum of 40181's digits is 14
  • More coming soon!

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"Number 40181 - Facts about the integer". Numbermatics.com. 2025. Web. 10 November 2025.

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Numbermatics. (2025). Number 40181 - Facts about the integer. Retrieved 10 November 2025, from https://numbermatics.com/n/40181/

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Numbermatics. 2025. "Number 40181 - Facts about the integer". https://numbermatics.com/n/40181/

The information we have on file for 40181 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 40181, math, Factors of 40181, curriculum, school, college, exams, university, Prime factorization of 40181, STEM, science, technology, engineering, physics, economics, calculator, forty thousand, one hundred eighty-one.

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