8428

8,428 is an even composite number composed of three prime numbers multiplied together.

What does the number 8428 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 18 divisors.

8428 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighteen divisors.

Prime factorization of 8428:

22 × 72 × 43

(2 × 2 × 7 × 7 × 43)

See below for interesting mathematical facts about the number 8428 from the Numbermatics database.


Names of 8428

  • Cardinal: 8428 can be written as Eight thousand, four hundred twenty-eight.

Scientific notation

  • Scientific notation: 8.428 × 103

Factors of 8428

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 5
  • Sum of prime factors: 52

Divisors of 8428

  • Number of divisors d(n): 18
  • Complete list of divisors:
  • Sum of all divisors σ(n): 17556
  • Sum of proper divisors (its aliquot sum) s(n): 9128
  • 8428 is an abundant number, because the sum of its proper divisors (9128) is greater than itself. Its abundance is 700

Bases of 8428

  • Binary: 100000111011002
  • Hexadecimal: 0x20EC
  • Base-36: 6I4

Squares and roots of 8428

  • 8428 squared (84282) is 71031184
  • 8428 cubed (84283) is 598650818752
  • The square root of 8428 is 91.8041393403
  • The cube root of 8428 is 20.3504886723

Scales and comparisons

How big is 8428?
  • 8,428 seconds is equal to 2 hours, 20 minutes, 28 seconds.
  • To count from 1 to 8,428 would take you about two 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 8428 cubic inches would be around 1.7 feet tall.

Recreational maths with 8428

  • 8428 backwards is 8248
  • The number of decimal digits it has is: 4
  • The sum of 8428's digits is 22
  • More coming soon!

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The information we have on file for 8428 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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