21,648 is an even composite number composed of four prime numbers multiplied together.

What does the number 21648 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

21648 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 21648:

24 × 3 × 11 × 41

(2 × 2 × 2 × 2 × 3 × 11 × 41)

See below for interesting mathematical facts about the number 21648 from the Numbermatics database.

Names of 21648

  • Cardinal: 21648 can be written as Twenty-one thousand, six hundred forty-eight.

Scientific notation

  • Scientific notation: 2.1648 × 104

Factors of 21648

  • Number of distinct prime factors ω(n): 4
  • Total number of prime factors Ω(n): 7
  • Sum of prime factors: 57

Divisors of 21648

Bases of 21648

  • Binary: 1010100100100002
  • Hexadecimal: 0x5490
  • Base-36: GPC

Squares and roots of 21648

  • 21648 squared (216482) is 468635904
  • 21648 cubed (216483) is 10145030049792
  • The square root of 21648 is 147.1325932619
  • The cube root of 21648 is 27.8701470231

Scales and comparisons

How big is 21648?
  • 21,648 seconds is equal to 6 hours, 48 seconds.
  • To count from 1 to 21,648 would take you about six 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 21648 cubic inches would be around 2.3 feet tall.

Recreational maths with 21648

  • 21648 backwards is 84612
  • The number of decimal digits it has is: 5
  • The sum of 21648's digits is 21
  • More coming soon!

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The information we have on file for 21648 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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