21,184 is an even composite number composed of two prime numbers multiplied together.

What does the number 21184 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 14 divisors.

21184 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of fourteen divisors.

Prime factorization of 21184:

26 × 331

(2 × 2 × 2 × 2 × 2 × 2 × 331)

See below for interesting mathematical facts about the number 21184 from the Numbermatics database.

Names of 21184

  • Cardinal: 21184 can be written as Twenty-one thousand, one hundred eighty-four.

Scientific notation

  • Scientific notation: 2.1184 × 104

Factors of 21184

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 7
  • Sum of prime factors: 333

Divisors of 21184

  • Number of divisors d(n): 14
  • Complete list of divisors:
  • Sum of all divisors σ(n): 42164
  • Sum of proper divisors (its aliquot sum) s(n): 20980
  • 21184 is a deficient number, because the sum of its proper divisors (20980) is less than itself. Its deficiency is 204

Bases of 21184

  • Binary: 1010010110000002
  • Hexadecimal: 0x52C0
  • Base-36: GCG

Squares and roots of 21184

  • 21184 squared (211842) is 448761856
  • 21184 cubed (211843) is 9506571157504
  • The square root of 21184 is 145.5472431893
  • The cube root of 21184 is 27.6695856665

Scales and comparisons

How big is 21184?
  • 21,184 seconds is equal to 5 hours, 53 minutes, 4 seconds.
  • To count from 1 to 21,184 would take you about five 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 21184 cubic inches would be around 2.3 feet tall.

Recreational maths with 21184

  • 21184 backwards is 48112
  • 21184 is a Harshad number.
  • The number of decimal digits it has is: 5
  • The sum of 21184's digits is 16
  • More coming soon!

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The information we have on file for 21184 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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