3871

3,871 is an odd composite number composed of two prime numbers multiplied together.

What does the number 3871 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

3871 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 3871:

72 × 79

(7 × 7 × 79)

See below for interesting mathematical facts about the number 3871 from the Numbermatics database.


Names of 3871

  • Cardinal: 3871 can be written as Three thousand, eight hundred seventy-one.

Scientific notation

  • Scientific notation: 3.871 × 103

Factors of 3871

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 86

Divisors of 3871

  • Number of divisors d(n): 6
  • Complete list of divisors:
  • Sum of all divisors σ(n): 4560
  • Sum of proper divisors (its aliquot sum) s(n): 689
  • 3871 is a deficient number, because the sum of its proper divisors (689) is less than itself. Its deficiency is 3182

Bases of 3871

  • Binary: 1111000111112
  • Hexadecimal: 0xF1F
  • Base-36: 2ZJ

Squares and roots of 3871

  • 3871 squared (38712) is 14984641
  • 3871 cubed (38713) is 58005545311
  • The square root of 3871 is 62.2173609215
  • The cube root of 3871 is 15.7014968755

Scales and comparisons

How big is 3871?
  • 3,871 seconds is equal to 1 hour, 4 minutes, 31 seconds.
  • To count from 1 to 3,871 would take you about four minutes.

    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 3871 cubic inches would be around 1.3 feet tall.

Recreational maths with 3871

  • 3871 backwards is 1783
  • The number of decimal digits it has is: 4
  • The sum of 3871's digits is 19
  • More coming soon!

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"Number 3871 - Facts about the integer". Numbermatics.com. 2024. Web. 17 April 2024.

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Numbermatics. (2024). Number 3871 - Facts about the integer. Retrieved 17 April 2024, from https://numbermatics.com/n/3871/

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The information we have on file for 3871 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 3871, math, Factors of 3871, curriculum, school, college, exams, university, Prime factorization of 3871, STEM, science, technology, engineering, physics, economics, calculator, three thousand, eight hundred seventy-one.

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