221728

221,728 is an even composite number composed of three prime numbers multiplied together.

What does the number 221728 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 36 divisors.

221728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 221728:

25 × 132 × 41

(2 × 2 × 2 × 2 × 2 × 13 × 13 × 41)

See below for interesting mathematical facts about the number 221728 from the Numbermatics database.


Names of 221728

  • Cardinal: 221728 can be written as Two hundred twenty-one thousand, seven hundred twenty-eight.

Scientific notation

  • Scientific notation: 2.21728 × 105

Factors of 221728

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 8
  • Sum of prime factors: 56

Divisors of 221728

Bases of 221728

  • Binary: 1101100010001000002
  • Hexadecimal: 0x36220
  • Base-36: 4R34

Squares and roots of 221728

  • 221728 squared (2217282) is 49163305984
  • 221728 cubed (2217283) is 10900881509220352
  • The square root of 221728 is 470.8800271831
  • The cube root of 221728 is 60.5257500295

Scales and comparisons

How big is 221728?
  • 221,728 seconds is equal to 2 days, 13 hours, 35 minutes, 28 seconds.
  • To count from 1 to 221,728 would take you about two 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 221728 cubic inches would be around 5 feet tall.

Recreational maths with 221728

  • 221728 backwards is 827122
  • The number of decimal digits it has is: 6
  • The sum of 221728's digits is 22
  • More coming soon!

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"Number 221728 - Facts about the integer". Numbermatics.com. 2024. Web. 15 November 2024.

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Numbermatics. (2024). Number 221728 - Facts about the integer. Retrieved 15 November 2024, from https://numbermatics.com/n/221728/

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Numbermatics. 2024. "Number 221728 - Facts about the integer". https://numbermatics.com/n/221728/

The information we have on file for 221728 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!

Keywords: Divisors of 221728, math, Factors of 221728, curriculum, school, college, exams, university, Prime factorization of 221728, STEM, science, technology, engineering, physics, economics, calculator, two hundred twenty-one thousand, seven hundred twenty-eight.

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