420,991 is an odd composite number composed of two prime numbers multiplied together.

What does the number 420991 look like?

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

420991 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 420991:

732 × 79

(73 × 73 × 79)

See below for interesting mathematical facts about the number 420991 from the Numbermatics database.

Names of 420991

  • Cardinal: 420991 can be written as Four hundred twenty thousand, nine hundred ninety-one.

Scientific notation

  • Scientific notation: 4.20991 × 105

Factors of 420991

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 152

Divisors of 420991

  • Number of divisors d(n): 6
  • Complete list of divisors:
  • Sum of all divisors σ(n): 432240
  • Sum of proper divisors (its aliquot sum) s(n): 11249
  • 420991 is a deficient number, because the sum of its proper divisors (11249) is less than itself. Its deficiency is 409742

Bases of 420991

  • Binary: 11001101100011111112
  • Hexadecimal: 0x66C7F
  • Base-36: 90U7

Squares and roots of 420991

  • 420991 squared (4209912) is 177233422081
  • 420991 cubed (4209913) is 74613675595302271
  • The square root of 420991 is 648.8381924641
  • The cube root of 420991 is 74.9475781827

Scales and comparisons

How big is 420991?
  • 420,991 seconds is equal to 4 days, 20 hours, 56 minutes, 31 seconds.
  • To count from 1 to 420,991 would take you about four days.

    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 420991 cubic inches would be around 6.2 feet tall.

Recreational maths with 420991

  • 420991 backwards is 199024
  • The number of decimal digits it has is: 6
  • The sum of 420991's digits is 25
  • More coming soon!

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"Number 420991 - Facts about the integer". Numbermatics.com. 2021. Web. 27 November 2021.

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Numbermatics. (2021). Number 420991 - Facts about the integer. Retrieved 27 November 2021, from https://numbermatics.com/n/420991/

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The information we have on file for 420991 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 420991, math, Factors of 420991, curriculum, school, college, exams, university, Prime factorization of 420991, STEM, science, technology, engineering, physics, economics, calculator, four hundred twenty thousand, nine hundred ninety-one.

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