25391

25,391 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 25391 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

25391 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 25391:

25391

See below for interesting mathematical facts about the number 25391 from the Numbermatics database.


Names of 25391

  • Cardinal: 25391 can be written as Twenty-five thousand, three hundred ninety-one.

Scientific notation

  • Scientific notation: 2.5391 × 104

Factors of 25391

  • Number of distinct prime factors ω(n): 1
  • Total number of prime factors Ω(n): 1
  • Sum of prime factors: 25391

Divisors of 25391

  • Number of divisors d(n): 2
  • Complete list of divisors:
  • Sum of all divisors σ(n): 25392
  • Sum of proper divisors (its aliquot sum) s(n): 1
  • 25391 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 25390

Bases of 25391

  • Binary: 1100011001011112
  • Hexadecimal: 0x632F
  • Base-36: JLB

Squares and roots of 25391

  • 25391 squared (253912) is 644702881
  • 25391 cubed (253913) is 16369650851471
  • The square root of 25391 is 159.3455364923
  • The cube root of 25391 is 29.3918282933

Scales and comparisons

How big is 25391?
  • 25,391 seconds is equal to 7 hours, 3 minutes, 11 seconds.
  • To count from 1 to 25,391 would take you about seven 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 25391 cubic inches would be around 2.4 feet tall.

Recreational maths with 25391

  • 25391 backwards is 19352
  • The number of decimal digits it has is: 5
  • The sum of 25391's digits is 20
  • More coming soon!

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"Number 25391 - Facts about the integer". Numbermatics.com. 2021. Web. 3 March 2021.

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The information we have on file for 25391 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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