29991

29,991 is an odd composite number composed of three prime numbers multiplied together.

What does the number 29991 look like?

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

29991 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 29991:

3 × 13 × 769

See below for interesting mathematical facts about the number 29991 from the Numbermatics database.


Names of 29991

  • Cardinal: 29991 can be written as Twenty-nine thousand, nine hundred ninety-one.

Scientific notation

  • Scientific notation: 2.9991 × 104

Factors of 29991

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 785

Divisors of 29991

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 43120
  • Sum of proper divisors (its aliquot sum) s(n): 13129
  • 29991 is a deficient number, because the sum of its proper divisors (13129) is less than itself. Its deficiency is 16862

Bases of 29991

  • Binary: 1110101001001112
  • Hexadecimal: 0x7527
  • Base-36: N53

Squares and roots of 29991

  • 29991 squared (299912) is 899460081
  • 29991 cubed (299913) is 26975707289271
  • The square root of 29991 is 173.1790980459
  • The cube root of 29991 is 31.0692175161

Scales and comparisons

How big is 29991?
  • 29,991 seconds is equal to 8 hours, 19 minutes, 51 seconds.
  • To count from 1 to 29,991 would take you about eight 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 29991 cubic inches would be around 2.6 feet tall.

Recreational maths with 29991

  • 29991 backwards is 19992
  • The number of decimal digits it has is: 5
  • The sum of 29991's digits is 30
  • More coming soon!

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"Number 29991 - Facts about the integer". Numbermatics.com. 2021. Web. 28 September 2021.

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Numbermatics. (2021). Number 29991 - Facts about the integer. Retrieved 28 September 2021, from https://numbermatics.com/n/29991/

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The information we have on file for 29991 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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