28904

28,904 is an even composite number composed of two prime numbers multiplied together.

What does the number 28904 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 8 divisors.

28904 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 28904:

23 × 3613

(2 × 2 × 2 × 3613)

See below for interesting mathematical facts about the number 28904 from the Numbermatics database.


Names of 28904

  • Cardinal: 28904 can be written as Twenty-eight thousand, nine hundred four.

Scientific notation

  • Scientific notation: 2.8904 × 104

Factors of 28904

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 4
  • Sum of prime factors: 3615

Divisors of 28904

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 54210
  • Sum of proper divisors (its aliquot sum) s(n): 25306
  • 28904 is a deficient number, because the sum of its proper divisors (25306) is less than itself. Its deficiency is 3598

Bases of 28904

  • Binary: 1110000111010002
  • Hexadecimal: 0x70E8
  • Base-36: MAW

Squares and roots of 28904

  • 28904 squared (289042) is 835441216
  • 28904 cubed (289043) is 24147592907264
  • The square root of 28904 is 170.0117642989
  • The cube root of 28904 is 30.6892293523

Scales and comparisons

How big is 28904?
  • 28,904 seconds is equal to 8 hours, 1 minute, 44 seconds.
  • To count from 1 to 28,904 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 28904 cubic inches would be around 2.6 feet tall.

Recreational maths with 28904

  • 28904 backwards is 40982
  • The number of decimal digits it has is: 5
  • The sum of 28904's digits is 23
  • More coming soon!

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The information we have on file for 28904 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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