138240

138,240 is an even composite number composed of three prime numbers multiplied together.

What does the number 138240 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 88 divisors.

138240 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighty-eight divisors.

Prime factorization of 138240:

210 × 33 × 5

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5)

See below for interesting mathematical facts about the number 138240 from the Numbermatics database.

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Names Factors Divisors Scales Roots Fun

Names of 138240

  • Cardinal: 138240 can be written as One hundred thirty-eight thousand, two hundred forty.

Scientific notation

  • Scientific notation: 1.3824 × 105

Factors of 138240

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 14
  • Sum of prime factors: 10

Divisors of 138240

Bases of 138240

  • Binary: 1000011100000000002
  • Hexadecimal: 0x21C00
  • Base-36: 2YO0

Squares and roots of 138240

  • 138240 squared (1382402) is 19110297600
  • 138240 cubed (1382403) is 2641807540224000
  • The square root of 138240 is 371.8064012359
  • The cube root of 138240 is 51.7064325609

Scales and comparisons

How big is 138240?
  • 138,240 seconds is equal to 14 hours, 24 minutes.
  • To count from 1 to 138,240 would take you about fourteen 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 138240 cubic inches would be around 4.3 feet tall.

Recreational maths with 138240

  • 138240 backwards is 042831
  • 138240 is a Harshad number.
  • The number of decimal digits it has is: 6
  • The sum of 138240's digits is 18
  • More coming soon!

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"Number 138240 - Facts about the integer". Numbermatics.com. 2019. Web. 15 October 2019.

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Numbermatics. (2019). Number 138240 - Facts about the integer. Retrieved 15 October 2019, from https://numbermatics.com/n/138240/

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The information we have on file for 138240 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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