81018001

81,018,001 is an odd composite number. It is composed of a single prime number multiplied by itself.

What does the number 81018001 look like?

This visualization shows the relationship between its 1 prime factors (large circles) and 3 divisors.

81018001 is an odd composite number. It has a total of three divisors.

Prime factorization of 81018001:

90012

(9001 × 9001)

See below for interesting mathematical facts about the number 81018001 from the Numbermatics database.


Names of 81018001

  • Cardinal: 81018001 can be written as Eighty-one million, eighteen thousand and one.

Scientific notation

  • Scientific notation: 8.1018001 × 107

Factors of 81018001

  • Number of distinct prime factors ω(n): 1
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 9001

Divisors of 81018001

  • Number of divisors d(n): 3
  • Complete list of divisors:
  • Sum of all divisors σ(n): 81027003
  • Sum of proper divisors (its aliquot sum) s(n): 9002
  • 81018001 is a deficient number, because the sum of its proper divisors (9002) is less than itself. Its deficiency is 81008999

Bases of 81018001

  • Binary: 1001101010000111100100100012
  • Hexadecimal: 0x4D43C91
  • Base-36: 1C8HW1

Squares and roots of 81018001

Scales and comparisons

How big is 81018001?
  • 81,018,001 seconds is equal to 2 years, 29 weeks, 6 days, 17 hours, 1 second.
  • To count from 1 to 81,018,001 would take you about three years!

    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 81018001 cubic inches would be around 36.1 feet tall.

Recreational maths with 81018001

  • 81018001 backwards is 10081018
  • The number of decimal digits it has is: 8
  • The sum of 81018001's digits is 19
  • More coming soon!

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"Number 81018001 - Facts about the integer". Numbermatics.com. 2024. Web. 28 March 2024.

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Numbermatics. (2024). Number 81018001 - Facts about the integer. Retrieved 28 March 2024, from https://numbermatics.com/n/81018001/

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Numbermatics. 2024. "Number 81018001 - Facts about the integer". https://numbermatics.com/n/81018001/

The information we have on file for 81018001 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 81018001, math, Factors of 81018001, curriculum, school, college, exams, university, Prime factorization of 81018001, STEM, science, technology, engineering, physics, economics, calculator, eighty-one million, eighteen thousand and one.

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