28990

28,990 is an even composite number composed of four prime numbers multiplied together.

What does the number 28990 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

28990 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 28990:

2 × 5 × 13 × 223

See below for interesting mathematical facts about the number 28990 from the Numbermatics database.


Names of 28990

  • Cardinal: 28990 can be written as Twenty-eight thousand, nine hundred ninety.

Scientific notation

  • Scientific notation: 2.899 × 104

Factors of 28990

  • Number of distinct prime factors ω(n): 4
  • Total number of prime factors Ω(n): 4
  • Sum of prime factors: 243

Divisors of 28990

  • Number of divisors d(n): 16
  • Complete list of divisors:
  • Sum of all divisors σ(n): 56448
  • Sum of proper divisors (its aliquot sum) s(n): 27458
  • 28990 is a deficient number, because the sum of its proper divisors (27458) is less than itself. Its deficiency is 1532

Bases of 28990

  • Binary: 1110001001111102
  • Hexadecimal: 0x713E
  • Base-36: MDA

Squares and roots of 28990

  • 28990 squared (289902) is 840420100
  • 28990 cubed (289903) is 24363778699000
  • The square root of 28990 is 170.2645001167
  • The cube root of 28990 is 30.7196364523

Scales and comparisons

How big is 28990?
  • 28,990 seconds is equal to 8 hours, 3 minutes, 10 seconds.
  • To count from 1 to 28,990 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 28990 cubic inches would be around 2.6 feet tall.

Recreational maths with 28990

  • 28990 backwards is 09982
  • The number of decimal digits it has is: 5
  • The sum of 28990's digits is 28
  • More coming soon!

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"Number 28990 - Facts about the integer". Numbermatics.com. 2024. Web. 28 March 2024.

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Numbermatics. (2024). Number 28990 - Facts about the integer. Retrieved 28 March 2024, from https://numbermatics.com/n/28990/

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The information we have on file for 28990 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!

Keywords: Divisors of 28990, math, Factors of 28990, curriculum, school, college, exams, university, Prime factorization of 28990, STEM, science, technology, engineering, physics, economics, calculator, twenty-eight thousand, nine hundred ninety.

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