72121

72,121 is an odd composite number composed of two prime numbers multiplied together.

What does the number 72121 look like?

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

72121 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 72121:

7 × 10303

See below for interesting mathematical facts about the number 72121 from the Numbermatics database.


Names of 72121

  • Cardinal: 72121 can be written as Seventy-two thousand, one hundred twenty-one.

Scientific notation

  • Scientific notation: 7.2121 × 104

Factors of 72121

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 10310

Divisors of 72121

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 82432
  • Sum of proper divisors (its aliquot sum) s(n): 10311
  • 72121 is a deficient number, because the sum of its proper divisors (10311) is less than itself. Its deficiency is 61810

Bases of 72121

  • Binary: 100011001101110012
  • Hexadecimal: 0x119B9
  • Base-36: 1JND

Squares and roots of 72121

  • 72121 squared (721212) is 5201438641
  • 72121 cubed (721213) is 375132956227561
  • The square root of 72121 is 268.5535328385
  • The cube root of 72121 is 41.6249680611

Scales and comparisons

How big is 72121?
  • 72,121 seconds is equal to 20 hours, 2 minutes, 1 second.
  • To count from 1 to 72,121 would take you about twenty 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 72121 cubic inches would be around 3.5 feet tall.

Recreational maths with 72121

  • 72121 backwards is 12127
  • The number of decimal digits it has is: 5
  • The sum of 72121's digits is 13
  • More coming soon!

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"Number 72121 - Facts about the integer". Numbermatics.com. 2024. Web. 13 October 2024.

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Numbermatics. (2024). Number 72121 - Facts about the integer. Retrieved 13 October 2024, from https://numbermatics.com/n/72121/

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Numbermatics. 2024. "Number 72121 - Facts about the integer". https://numbermatics.com/n/72121/

The information we have on file for 72121 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 72121, math, Factors of 72121, curriculum, school, college, exams, university, Prime factorization of 72121, STEM, science, technology, engineering, physics, economics, calculator, seventy-two thousand, one hundred twenty-one.

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