40805

40,805 is an odd composite number composed of two prime numbers multiplied together.

What does the number 40805 look like?

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

40805 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 40805:

5 × 8161

See below for interesting mathematical facts about the number 40805 from the Numbermatics database.


Names of 40805

  • Cardinal: 40805 can be written as Forty thousand, eight hundred five.

Scientific notation

  • Scientific notation: 4.0805 × 104

Factors of 40805

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 8166

Divisors of 40805

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 48972
  • Sum of proper divisors (its aliquot sum) s(n): 8167
  • 40805 is a deficient number, because the sum of its proper divisors (8167) is less than itself. Its deficiency is 32638

Bases of 40805

  • Binary: 10011111011001012
  • Hexadecimal: 0x9F65
  • Base-36: VHH

Squares and roots of 40805

  • 40805 squared (408052) is 1665048025
  • 40805 cubed (408053) is 67942284660125
  • The square root of 40805 is 202.0024752325
  • The cube root of 40805 is 34.4274186485

Scales and comparisons

How big is 40805?
  • 40,805 seconds is equal to 11 hours, 20 minutes, 5 seconds.
  • To count from 1 to 40,805 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 40805 cubic inches would be around 2.9 feet tall.

Recreational maths with 40805

  • 40805 backwards is 50804
  • The number of decimal digits it has is: 5
  • The sum of 40805's digits is 17
  • More coming soon!

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"Number 40805 - Facts about the integer". Numbermatics.com. 2021. Web. 18 October 2021.

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Numbermatics. (2021). Number 40805 - Facts about the integer. Retrieved 18 October 2021, from https://numbermatics.com/n/40805/

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The information we have on file for 40805 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!

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