39742

39,742 is an even composite number composed of three prime numbers multiplied together.

What does the number 39742 look like?

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

39742 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 39742:

2 × 31 × 641

See below for interesting mathematical facts about the number 39742 from the Numbermatics database.


Names of 39742

  • Cardinal: 39742 can be written as Thirty-nine thousand, seven hundred forty-two.

Scientific notation

  • Scientific notation: 3.9742 × 104

Factors of 39742

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 674

Divisors of 39742

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 61632
  • Sum of proper divisors (its aliquot sum) s(n): 21890
  • 39742 is a deficient number, because the sum of its proper divisors (21890) is less than itself. Its deficiency is 17852

Bases of 39742

  • Binary: 10011011001111102
  • Hexadecimal: 0x9B3E
  • Base-36: UNY

Squares and roots of 39742

  • 39742 squared (397422) is 1579426564
  • 39742 cubed (397423) is 62769570506488
  • The square root of 39742 is 199.3539565697
  • The cube root of 39742 is 34.1258313117

Scales and comparisons

How big is 39742?
  • 39,742 seconds is equal to 11 hours, 2 minutes, 22 seconds.
  • To count from 1 to 39,742 would take you about eleven 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 39742 cubic inches would be around 2.8 feet tall.

Recreational maths with 39742

  • 39742 backwards is 24793
  • The number of decimal digits it has is: 5
  • The sum of 39742's digits is 25
  • More coming soon!

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The information we have on file for 39742 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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