2828

2,828 is an even composite number composed of three prime numbers multiplied together.

What does the number 2828 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

2828 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 2828:

22 × 7 × 101

(2 × 2 × 7 × 101)

See below for interesting mathematical facts about the number 2828 from the Numbermatics database.


Names of 2828

  • Cardinal: 2828 can be written as Two thousand, eight hundred twenty-eight.

Scientific notation

  • Scientific notation: 2.828 × 103

Factors of 2828

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 4
  • Sum of prime factors: 110

Divisors of 2828

  • Number of divisors d(n): 12
  • Complete list of divisors:
  • Sum of all divisors σ(n): 5712
  • Sum of proper divisors (its aliquot sum) s(n): 2884
  • 2828 is an abundant number, because the sum of its proper divisors (2884) is greater than itself. Its abundance is 56

Bases of 2828

  • Binary: 1011000011002
  • Hexadecimal: 0xB0C
  • Base-36: 26K

Squares and roots of 2828

  • 2828 squared (28282) is 7997584
  • 2828 cubed (28283) is 22617167552
  • The square root of 2828 is 53.1789432013
  • The cube root of 2828 is 14.1414237133

Scales and comparisons

How big is 2828?
  • 2,828 seconds is equal to 47 minutes, 8 seconds.
  • To count from 1 to 2,828 would take you about forty-seven minutes.

    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 2828 cubic inches would be around 1.2 feet tall.

Recreational maths with 2828

  • 2828 backwards is 8282
  • The number of decimal digits it has is: 4
  • The sum of 2828's digits is 20
  • More coming soon!

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"Number 2828 - Facts about the integer". Numbermatics.com. 2020. Web. 24 September 2020.

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The information we have on file for 2828 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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