123840

123,840 is an even composite number composed of four prime numbers multiplied together.

What does the number 123840 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 84 divisors.

123840 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-four divisors.

Prime factorization of 123840:

26 × 32 × 5 × 43

(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 43)

See below for interesting mathematical facts about the number 123840 from the Numbermatics database.


Names of 123840

  • Cardinal: 123840 can be written as One hundred twenty-three thousand, eight hundred forty.

Scientific notation

  • Scientific notation: 1.2384 × 105

Factors of 123840

  • Number of distinct prime factors ω(n): 4
  • Total number of prime factors Ω(n): 10
  • Sum of prime factors: 53

Divisors of 123840

Bases of 123840

  • Binary: 111100011110000002
  • Hexadecimal: 0x1E3C0
  • Base-36: 2NK0

Squares and roots of 123840

  • 123840 squared (1238402) is 15336345600
  • 123840 cubed (1238403) is 1899253039104000
  • The square root of 123840 is 351.9090791667
  • The cube root of 123840 is 49.8448524157

Scales and comparisons

How big is 123840?
  • 123,840 seconds is equal to 1 day, 10 hours, 24 minutes.
  • To count from 1 to 123,840 would take you about ten 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 123840 cubic inches would be around 4.2 feet tall.

Recreational maths with 123840

  • 123840 backwards is 048321
  • 123840 is a Harshad number.
  • The number of decimal digits it has is: 6
  • The sum of 123840's digits is 18
  • More coming soon!

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"Number 123840 - Facts about the integer". Numbermatics.com. 2024. Web. 28 March 2024.

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Numbermatics. (2024). Number 123840 - Facts about the integer. Retrieved 28 March 2024, from https://numbermatics.com/n/123840/

Chicago style:
Numbermatics. 2024. "Number 123840 - Facts about the integer". https://numbermatics.com/n/123840/

The information we have on file for 123840 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 123840, math, Factors of 123840, curriculum, school, college, exams, university, Prime factorization of 123840, STEM, science, technology, engineering, physics, economics, calculator, one hundred twenty-three thousand, eight hundred forty.

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