7428

7,428 is an even composite number composed of three prime numbers multiplied together.

What does the number 7428 look like?

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

7428 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 7428:

22 × 3 × 619

(2 × 2 × 3 × 619)

See below for interesting mathematical facts about the number 7428 from the Numbermatics database.


Names of 7428

  • Cardinal: 7428 can be written as Seven thousand, four hundred twenty-eight.

Scientific notation

  • Scientific notation: 7.428 × 103

Factors of 7428

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 4
  • Sum of prime factors: 624

Divisors of 7428

  • Number of divisors d(n): 12
  • Complete list of divisors:
  • Sum of all divisors σ(n): 17360
  • Sum of proper divisors (its aliquot sum) s(n): 9932
  • 7428 is an abundant number, because the sum of its proper divisors (9932) is greater than itself. Its abundance is 2504

Bases of 7428

  • Binary: 11101000001002
  • Hexadecimal: 0x1D04
  • Base-36: 5QC

Squares and roots of 7428

  • 7428 squared (74282) is 55175184
  • 7428 cubed (74283) is 409841266752
  • The square root of 7428 is 86.1858457057
  • The cube root of 7428 is 19.5114988065

Scales and comparisons

How big is 7428?
  • 7,428 seconds is equal to 2 hours, 3 minutes, 48 seconds.
  • To count from 1 to 7,428 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 7428 cubic inches would be around 1.6 feet tall.

Recreational maths with 7428

  • 7428 backwards is 8247
  • The number of decimal digits it has is: 4
  • The sum of 7428's digits is 21
  • More coming soon!

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The information we have on file for 7428 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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