399742

399,742 is an even composite number composed of three prime numbers multiplied together.

What does the number 399742 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

399742 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 399742:

2 × 72 × 4079

(2 × 7 × 7 × 4079)

See below for interesting mathematical facts about the number 399742 from the Numbermatics database.


Names of 399742

  • Cardinal: 399742 can be written as Three hundred ninety-nine thousand, seven hundred forty-two.

Scientific notation

  • Scientific notation: 3.99742 × 105

Factors of 399742

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 4
  • Sum of prime factors: 4088

Divisors of 399742

  • Number of divisors d(n): 12
  • Complete list of divisors:
  • Sum of all divisors σ(n): 697680
  • Sum of proper divisors (its aliquot sum) s(n): 297938
  • 399742 is a deficient number, because the sum of its proper divisors (297938) is less than itself. Its deficiency is 101804

Bases of 399742

  • Binary: 11000011001011111102
  • Hexadecimal: 0x6197E
  • Base-36: 8KFY

Squares and roots of 399742

  • 399742 squared (3997422) is 159793666564
  • 399742 cubed (3997423) is 63876239859626488
  • The square root of 399742 is 632.2515322243
  • The cube root of 399742 is 73.6647852301

Scales and comparisons

How big is 399742?
  • 399,742 seconds is equal to 4 days, 15 hours, 2 minutes, 22 seconds.
  • To count from 1 to 399,742 would take you about four days.

    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 399742 cubic inches would be around 6.1 feet tall.

Recreational maths with 399742

  • 399742 backwards is 247993
  • The number of decimal digits it has is: 6
  • The sum of 399742's digits is 34
  • More coming soon!

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"Number 399742 - Facts about the integer". Numbermatics.com. 2024. Web. 28 March 2024.

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Numbermatics. (2024). Number 399742 - Facts about the integer. Retrieved 28 March 2024, from https://numbermatics.com/n/399742/

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The information we have on file for 399742 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 399742, math, Factors of 399742, curriculum, school, college, exams, university, Prime factorization of 399742, STEM, science, technology, engineering, physics, economics, calculator, three hundred ninety-nine thousand, seven hundred forty-two.

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