81442840227840

81,442,840,227,840 is an even composite number composed of eight prime numbers multiplied together.

What does the number 81442840227840 look like?

This visualization shows the relationship between its 8 prime factors (large circles) and 6656 divisors.

81442840227840 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of six thousand, six hundred fifty-six divisors.

Prime factorization of 81442840227840:

212 × 33 × 5 × 73 × 13 × 17 × 29 × 67

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 7 × 7 × 7 × 13 × 17 × 29 × 67)

See below for interesting mathematical facts about the number 81442840227840 from the Numbermatics database.


Names of 81442840227840

  • Cardinal: 81442840227840 can be written as Eighty-one trillion, four hundred forty-two billion, eight hundred forty million, two hundred twenty-seven thousand, eight hundred forty.

Scientific notation

  • Scientific notation: 8.144284022784 × 1013

Factors of 81442840227840

  • Number of distinct prime factors ω(n): 8
  • Total number of prime factors Ω(n): 23
  • Sum of prime factors: 143

Divisors of 81442840227840

Bases of 81442840227840

  • Binary: 100101000010010011000111000111110110000000000002
  • Hexadecimal: 0x4A12638FB000
  • Base-36: SVABOA2O0

Squares and roots of 81442840227840

  • 81442840227840 squared (814428402278402) is 6632936224377473383111065600
  • 81442840227840 cubed (814428402278403) is 540205165163426853707136753498329186304000
  • The square root of 81442840227840 is 9024568.7003778745
  • The cube root of 81442840227840 is 43346.1939878551

Scales and comparisons

How big is 81442840227840?
  • 81,442,840,227,840 seconds is equal to 2,589,630 years, 20 weeks, 5 days, 14 hours, 24 minutes.
  • To count from 1 to 81,442,840,227,840 would take you about six million, four hundred seventy-four thousand and seventy-six 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 81442840227840 cubic inches would be around 3612.2 feet tall.

Recreational maths with 81442840227840

  • 81442840227840 backwards is 04872204824418
  • 81442840227840 is a Harshad number.
  • The number of decimal digits it has is: 14
  • The sum of 81442840227840's digits is 54
  • More coming soon!

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"Number 81442840227840 - Facts about the integer". Numbermatics.com. 2024. Web. 22 September 2024.

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Numbermatics. (2024). Number 81442840227840 - Facts about the integer. Retrieved 22 September 2024, from https://numbermatics.com/n/81442840227840/

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Numbermatics. 2024. "Number 81442840227840 - Facts about the integer". https://numbermatics.com/n/81442840227840/

The information we have on file for 81442840227840 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!

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