121689

121,689 is an odd composite number composed of two prime numbers multiplied together.

What does the number 121689 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 8 divisors.

121689 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 121689:

33 × 4507

(3 × 3 × 3 × 4507)

See below for interesting mathematical facts about the number 121689 from the Numbermatics database.


Names of 121689

  • Cardinal: 121689 can be written as One hundred twenty-one thousand, six hundred eighty-nine.

Scientific notation

  • Scientific notation: 1.21689 × 105

Factors of 121689

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 4
  • Sum of prime factors: 4510

Divisors of 121689

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 180320
  • Sum of proper divisors (its aliquot sum) s(n): 58631
  • 121689 is a deficient number, because the sum of its proper divisors (58631) is less than itself. Its deficiency is 63058

Bases of 121689

  • Binary: 111011011010110012
  • Hexadecimal: 0x1DB59
  • Base-36: 2LW9

Squares and roots of 121689

  • 121689 squared (1216892) is 14808212721
  • 121689 cubed (1216893) is 1801996597805769
  • The square root of 121689 is 348.8395046437
  • The cube root of 121689 is 49.5545770849

Scales and comparisons

How big is 121689?
  • 121,689 seconds is equal to 1 day, 9 hours, 48 minutes, 9 seconds.
  • To count from 1 to 121,689 would take you about nine 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 121689 cubic inches would be around 4.1 feet tall.

Recreational maths with 121689

  • 121689 backwards is 986121
  • 121689 is a Harshad number.
  • The number of decimal digits it has is: 6
  • The sum of 121689's digits is 27
  • More coming soon!

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"Number 121689 - Facts about the integer". Numbermatics.com. 2024. Web. 29 March 2024.

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Numbermatics. (2024). Number 121689 - Facts about the integer. Retrieved 29 March 2024, from https://numbermatics.com/n/121689/

Chicago style:
Numbermatics. 2024. "Number 121689 - Facts about the integer". https://numbermatics.com/n/121689/

The information we have on file for 121689 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 121689, math, Factors of 121689, curriculum, school, college, exams, university, Prime factorization of 121689, STEM, science, technology, engineering, physics, economics, calculator, one hundred twenty-one thousand, six hundred eighty-nine.

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