139775721

139,775,721 is an odd composite number composed of three prime numbers multiplied together.

What does the number 139775721 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

139775721 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 139775721:

3 × 661 × 70487

See below for interesting mathematical facts about the number 139775721 from the Numbermatics database.


Names of 139775721

  • Cardinal: 139775721 can be written as One hundred thirty-nine million, seven hundred seventy-five thousand, seven hundred twenty-one.

Scientific notation

  • Scientific notation: 1.39775721 × 108

Factors of 139775721

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 71151

Divisors of 139775721

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 186652224
  • Sum of proper divisors (its aliquot sum) s(n): 46876503
  • 139775721 is a deficient number, because the sum of its proper divisors (46876503) is less than itself. Its deficiency is 92899218

Bases of 139775721

  • Binary: 10000101010011001110111010012
  • Hexadecimal: 0x854CEE9
  • Base-36: 2B7VMX

Squares and roots of 139775721

Scales and comparisons

How big is 139775721?
  • 139,775,721 seconds is equal to 4 years, 23 weeks, 18 hours, 35 minutes, 21 seconds.
  • To count from 1 to 139,775,721 would take you about six years!

    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 139775721 cubic inches would be around 43.2 feet tall.

Recreational maths with 139775721

  • 139775721 backwards is 127577931
  • The number of decimal digits it has is: 9
  • The sum of 139775721's digits is 42
  • More coming soon!

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"Number 139775721 - Facts about the integer". Numbermatics.com. 2024. Web. 31 October 2024.

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Numbermatics. (2024). Number 139775721 - Facts about the integer. Retrieved 31 October 2024, from https://numbermatics.com/n/139775721/

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Numbermatics. 2024. "Number 139775721 - Facts about the integer". https://numbermatics.com/n/139775721/

The information we have on file for 139775721 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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