642,267,649 is an odd composite number. It is composed of a single prime number multiplied by itself.

What does the number 642267649 look like?

This visualization shows the relationship between its 1 prime factors (large circles) and 3 divisors.

642267649 is an odd composite number. It has a total of three divisors.

Prime factorization of 642267649:


(25343 × 25343)

See below for interesting mathematical facts about the number 642267649 from the Numbermatics database.

Names of 642267649

  • Cardinal: 642267649 can be written as Six hundred forty-two million, two hundred sixty-seven thousand, six hundred forty-nine.

Scientific notation

  • Scientific notation: 6.42267649 × 108

Factors of 642267649

  • Number of distinct prime factors ω(n): 1
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 25343

Divisors of 642267649

  • Number of divisors d(n): 3
  • Complete list of divisors:
  • Sum of all divisors σ(n): 642292993
  • Sum of proper divisors (its aliquot sum) s(n): 25344
  • 642267649 is a deficient number, because the sum of its proper divisors (25344) is less than itself. Its deficiency is 642242305

Bases of 642267649

  • Binary: 1001100100100000111010000000012
  • Hexadecimal: 0x26483A01
  • Base-36: AME0W1

Squares and roots of 642267649

  • 642267649 squared (6422676492) is 412507732951987201
  • 642267649 cubed (6422676493) is 264940371837392649464360449
  • 642267649 is a perfect square number. Its square root is 25343
  • The cube root of 642267649 is 862.7904891161

Scales and comparisons

How big is 642267649?
  • 642,267,649 seconds is equal to 20 years, 21 weeks, 6 days, 15 hours, 40 minutes, 49 seconds.
  • To count from 1 to 642,267,649 would take you about thirty 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 642267649 cubic inches would be around 71.9 feet tall.

Recreational maths with 642267649

  • 642267649 backwards is 946762246
  • The number of decimal digits it has is: 9
  • The sum of 642267649's digits is 46
  • More coming soon!

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"Number 642267649 - Facts about the integer". Numbermatics.com. 2021. Web. 26 October 2021.

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Numbermatics. (2021). Number 642267649 - Facts about the integer. Retrieved 26 October 2021, from https://numbermatics.com/n/642267649/

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Numbermatics. 2021. "Number 642267649 - Facts about the integer". https://numbermatics.com/n/642267649/

The information we have on file for 642267649 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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