18992

18,992 is an even composite number composed of two prime numbers multiplied together.

18992 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of ten divisors.

Prime factorization of 18992:

24 × 1187

(2 × 2 × 2 × 2 × 1187)

See below for interesting mathematical facts about the number 18992 from the Numbermatics database.

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Names of 18992

  • Cardinal: 18992 can be written as Eighteen thousand, nine hundred ninety-two.

Scientific notation

  • Scientific notation: 1.8992 × 104

Factors of 18992

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 5
  • Sum of prime factors: 1189

Divisors of 18992

  • Number of divisors d(n): 10
  • Complete list of divisors:
  • Sum of all divisors σ(n): 36828
  • Sum of proper divisors (its aliquot sum) s(n): 17836
  • 18992 is a deficient number, because the sum of its proper divisors (17836) is less than itself. Its deficiency is 1156

Bases of 18992

  • Binary: 100101000110000 2
  • Hexadecimal: 0x4A30
  • Base-36: ENK

Squares and roots of 18992

  • 18992 squared (189922) is 360696064
  • 18992 cubed (189923) is 6850339647488
  • The square root of 18992 is 137.8114654157
  • The cube root of 18992 is 26.6802708363

Scales and comparisons

How big is 18992?
  • 18,992 seconds is equal to 5 hours, 16 minutes, 32 seconds.
  • To count from 1 to 18,992 would take you about five 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.

    Note: we do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!

  • A cube with a volume of 18992 cubic inches would be around 2.2 feet tall.

Recreational maths with 18992

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

The information we have on file for 18992 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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