21621741

21,621,741 is an odd composite number composed of two prime numbers multiplied together.

What does the number 21621741 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

21621741 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 21621741:

3 × 7207247

See below for interesting mathematical facts about the number 21621741 from the Numbermatics database.


Names of 21621741

  • Cardinal: 21621741 can be written as Twenty-one million, six hundred twenty-one thousand, seven hundred forty-one.

Scientific notation

  • Scientific notation: 2.1621741 × 107

Factors of 21621741

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 7207250

Divisors of 21621741

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 28828992
  • Sum of proper divisors (its aliquot sum) s(n): 7207251
  • 21621741 is a deficient number, because the sum of its proper divisors (7207251) is less than itself. Its deficiency is 14414490

Bases of 21621741

  • Binary: 10100100111101011111011012
  • Hexadecimal: 0x149EBED
  • Base-36: CVFFX

Squares and roots of 21621741

  • 21621741 squared (216217412) is 467499683871081
  • 21621741 cubed (216217413) is 10108157082242390772021
  • The square root of 21621741 is 4649.9183863805
  • The cube root of 21621741 is 278.5887364469

Scales and comparisons

How big is 21621741?
  • 21,621,741 seconds is equal to 35 weeks, 5 days, 6 hours, 2 minutes, 21 seconds.
  • To count from 1 to 21,621,741 would take you about four days!

    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 21621741 cubic inches would be around 23.2 feet tall.

Recreational maths with 21621741

  • 21621741 backwards is 14712612
  • The number of decimal digits it has is: 8
  • The sum of 21621741's digits is 24
  • More coming soon!

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"Number 21621741 - Facts about the integer". Numbermatics.com. 2024. Web. 6 June 2024.

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Numbermatics. (2024). Number 21621741 - Facts about the integer. Retrieved 6 June 2024, from https://numbermatics.com/n/21621741/

Chicago style:
Numbermatics. 2024. "Number 21621741 - Facts about the integer". https://numbermatics.com/n/21621741/

The information we have on file for 21621741 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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