128091

128,091 is an odd composite number composed of two prime numbers multiplied together.

What does the number 128091 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

128091 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 128091:

3 × 42697

See below for interesting mathematical facts about the number 128091 from the Numbermatics database.


Names of 128091

  • Cardinal: 128091 can be written as One hundred twenty-eight thousand and ninety-one.

Scientific notation

  • Scientific notation: 1.28091 × 105

Factors of 128091

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 42700

Divisors of 128091

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 170792
  • Sum of proper divisors (its aliquot sum) s(n): 42701
  • 128091 is a deficient number, because the sum of its proper divisors (42701) is less than itself. Its deficiency is 85390

Bases of 128091

  • Binary: 111110100010110112
  • Hexadecimal: 0x1F45B
  • Base-36: 2QU3

Squares and roots of 128091

  • 128091 squared (1280912) is 16407304281
  • 128091 cubed (1280913) is 2101628012657571
  • The square root of 128091 is 357.8980301707
  • The cube root of 128091 is 50.4087821683

Scales and comparisons

How big is 128091?
  • 128,091 seconds is equal to 1 day, 11 hours, 34 minutes, 51 seconds.
  • To count from 1 to 128,091 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 128091 cubic inches would be around 4.2 feet tall.

Recreational maths with 128091

  • 128091 backwards is 190821
  • The number of decimal digits it has is: 6
  • The sum of 128091's digits is 21
  • More coming soon!

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"Number 128091 - Facts about the integer". Numbermatics.com. 2024. Web. 5 May 2024.

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Numbermatics. (2024). Number 128091 - Facts about the integer. Retrieved 5 May 2024, from https://numbermatics.com/n/128091/

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Numbermatics. 2024. "Number 128091 - Facts about the integer". https://numbermatics.com/n/128091/

The information we have on file for 128091 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 128091, math, Factors of 128091, curriculum, school, college, exams, university, Prime factorization of 128091, STEM, science, technology, engineering, physics, economics, calculator, one hundred twenty-eight thousand and ninety-one.

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