18129842731
18,129,842,731 is an odd composite number composed of five prime numbers multiplied together.
18129842731 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 18129842731:
7 × 112 × 13 × 192 × 4561
(7 × 11 × 11 × 13 × 19 × 19 × 4561)See below for interesting mathematical facts about the number 18129842731 from the Numbermatics database.
Names of 18129842731
- Cardinal: 18129842731 can be written as Eighteen billion, one hundred twenty-nine million, eight hundred forty-two thousand, seven hundred thirty-one.
Scientific notation
- Scientific notation: 1.8129842731 × 1010
Factors of 18129842731
Divisors of 18129842731
- Number of divisors d(n): 72
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Complete list of divisors:
1 7 11 13 19 77 91 121 133 143 209 247 361 847 1001 1463 1573 1729 2299 2527 2717 3971 4561 4693 11011 16093 19019 27797 29887 31927 32851 43681 50171 51623 59293 86659 209209 305767 351197 361361 415051 551881 567853 606613 652223 953249 1126567 1646521 3863167 3974971 4565561 6672743 7174453 7885969 10485739 11525647 12392237 18111731 21404773 50221171 73400173 86745659 126782117 136314607 149833411 199229041 235452503 954202249 1394603287 1648167521 2589977533 18129842731
- Sum of all divisors σ(n): 25891065312
- Sum of proper divisors (its aliquot sum) s(n): 7761222581
- 18129842731 is a deficient number, because the sum of its proper divisors (7761222581) is less than itself. Its deficiency is 10368620150
Bases of 18129842731
- Binary: 100001110001001111101110010001010112
- Hexadecimal: 0x4389F722B
- Base-36: 8BU1G6J
Squares and roots of 18129842731
- 18129842731 squared (181298427312) is 328691197450793538361
- 18129842731 cubed (181298427313) is 5959119716846954961635945503891
-
The
square root of 18129842731 is 134647.1044285765 -
The
cube root of 18129842731 is 2627.0278621989
Scales and comparisons
How big is 18129842731?- 18,129,842,731 seconds is equal to 576 years, 24 weeks, 4 days, 3 hours, 25 minutes, 31 seconds.
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To count from 1 to 18,129,842,731 would take you about one thousand, one hundred fifty-two 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 18129842731 cubic inches would be around 218.9 feet tall.
Recreational maths with 18129842731
- 18129842731 backwards is 13724892181
- The number of decimal digits it has is: 11
- The sum of 18129842731's digits is 46
- More coming soon!
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"Number 18129842731 - Facts about the integer". Numbermatics.com. 2024. Web. 15 May 2024.
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Numbermatics. (2024). Number 18129842731 - Facts about the integer. Retrieved 15 May 2024, from https://numbermatics.com/n/18129842731/
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The information we have on file for 18129842731 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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