138742

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

What does the number 138742 look like?

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

138742 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 138742:

2 × 69371

See below for interesting mathematical facts about the number 138742 from the Numbermatics database.


Names of 138742

  • Cardinal: 138742 can be written as One hundred thirty-eight thousand, seven hundred forty-two.

Scientific notation

  • Scientific notation: 1.38742 × 105

Factors of 138742

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 69373

Divisors of 138742

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 208116
  • Sum of proper divisors (its aliquot sum) s(n): 69374
  • 138742 is a deficient number, because the sum of its proper divisors (69374) is less than itself. Its deficiency is 69368

Bases of 138742

  • Binary: 1000011101111101102
  • Hexadecimal: 0x21DF6
  • Base-36: 2Z1Y

Squares and roots of 138742

  • 138742 squared (1387422) is 19249342564
  • 138742 cubed (1387423) is 2670692286014488
  • The square root of 138742 is 372.4808719921
  • The cube root of 138742 is 51.7689452755

Scales and comparisons

How big is 138742?
  • 138,742 seconds is equal to 1 day, 14 hours, 32 minutes, 22 seconds.
  • To count from 1 to 138,742 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 138742 cubic inches would be around 4.3 feet tall.

Recreational maths with 138742

  • 138742 backwards is 247831
  • The number of decimal digits it has is: 6
  • The sum of 138742's digits is 25
  • More coming soon!

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"Number 138742 - Facts about the integer". Numbermatics.com. 2024. Web. 5 March 2024.

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Numbermatics. (2024). Number 138742 - Facts about the integer. Retrieved 5 March 2024, from https://numbermatics.com/n/138742/

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Numbermatics. 2024. "Number 138742 - Facts about the integer". https://numbermatics.com/n/138742/

The information we have on file for 138742 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 138742, math, Factors of 138742, curriculum, school, college, exams, university, Prime factorization of 138742, STEM, science, technology, engineering, physics, economics, calculator, one hundred thirty-eight thousand, seven hundred forty-two.

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