29,981 is an odd composite number composed of two prime numbers multiplied together.

What does the number 29981 look like?

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

29981 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 29981:

7 × 4283

See below for interesting mathematical facts about the number 29981 from the Numbermatics database.

Names of 29981

  • Cardinal: 29981 can be written as Twenty-nine thousand, nine hundred eighty-one.

Scientific notation

  • Scientific notation: 2.9981 × 104

Factors of 29981

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 4290

Divisors of 29981

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 34272
  • Sum of proper divisors (its aliquot sum) s(n): 4291
  • 29981 is a deficient number, because the sum of its proper divisors (4291) is less than itself. Its deficiency is 25690

Bases of 29981

  • Binary: 1110101000111012
  • Hexadecimal: 0x751D
  • Base-36: N4T

Squares and roots of 29981

  • 29981 squared (299812) is 898860361
  • 29981 cubed (299813) is 26948732483141
  • The square root of 29981 is 173.1502237943
  • The cube root of 29981 is 31.0657639611

Scales and comparisons

How big is 29981?
  • 29,981 seconds is equal to 8 hours, 19 minutes, 41 seconds.
  • To count from 1 to 29,981 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 29981 cubic inches would be around 2.6 feet tall.

Recreational maths with 29981

  • 29981 backwards is 18992
  • The number of decimal digits it has is: 5
  • The sum of 29981's digits is 29
  • More coming soon!

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The information we have on file for 29981 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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