138742128

138,742,128 is an even composite number composed of four prime numbers multiplied together.

What does the number 138742128 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 180 divisors.

138742128 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.

Prime factorization of 138742128:

24 × 32 × 73 × 532

(2 × 2 × 2 × 2 × 3 × 3 × 7 × 7 × 7 × 53 × 53)

See below for interesting mathematical facts about the number 138742128 from the Numbermatics database.


Names of 138742128

  • Cardinal: 138742128 can be written as One hundred thirty-eight million, seven hundred forty-two thousand, one hundred twenty-eight.

Scientific notation

  • Scientific notation: 1.38742128 × 108

Factors of 138742128

  • Number of distinct prime factors ω(n): 4
  • Total number of prime factors Ω(n): 11
  • Sum of prime factors: 65

Divisors of 138742128

Bases of 138742128

  • Binary: 10000100010100001001011100002
  • Hexadecimal: 0x8450970
  • Base-36: 2ALQ40

Squares and roots of 138742128

  • 138742128 squared (1387421282) is 19249378081968384
  • 138742128 cubed (1387421283) is 2670699677768852024881152
  • The square root of 138742128 is 11778.8848368595
  • The cube root of 138742128 is 517.6896119571

Scales and comparisons

How big is 138742128?
  • 138,742,128 seconds is equal to 4 years, 21 weeks, 2 days, 19 hours, 28 minutes, 48 seconds.
  • To count from 1 to 138,742,128 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 138742128 cubic inches would be around 43.1 feet tall.

Recreational maths with 138742128

  • 138742128 backwards is 821247831
  • 138742128 is a Harshad number.
  • The number of decimal digits it has is: 9
  • The sum of 138742128's digits is 36
  • More coming soon!

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"Number 138742128 - Facts about the integer". Numbermatics.com. 2020. Web. 2 April 2020.

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Numbermatics. (2020). Number 138742128 - Facts about the integer. Retrieved 2 April 2020, from https://numbermatics.com/n/138742128/

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The information we have on file for 138742128 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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