18138492740
18,138,492,740 is an even composite number composed of five prime numbers multiplied together.
What does the number 18138492740 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.
18138492740 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.
Prime factorization of 18138492740:
22 × 5 × 61 × 317 × 46901
(2 × 2 × 5 × 61 × 317 × 46901)See below for interesting mathematical facts about the number 18138492740 from the Numbermatics database.
Names of 18138492740
- Cardinal: 18138492740 can be written as Eighteen billion, one hundred thirty-eight million, four hundred ninety-two thousand, seven hundred forty.
Scientific notation
- Scientific notation: 1.813849274 × 1010
Factors of 18138492740
Divisors of 18138492740
- Number of divisors d(n): 48
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Complete list of divisors:
1 2 4 5 10 20 61 122 244 305 317 610 634 1220 1268 1585 3170 6340 19337 38674 46901 77348 93802 96685 187604 193370 234505 386740 469010 938020 2860961 5721922 11443844 14304805 14867617 28609610 29735234 57219220 59470468 74338085 148676170 297352340 906924637 1813849274 3627698548 4534623185 9069246370 18138492740
- Sum of all divisors σ(n): 38838232944
- Sum of proper divisors (its aliquot sum) s(n): 20699740204
- 18138492740 is an abundant number, because the sum of its proper divisors (20699740204) is greater than itself. Its abundance is 2561247464
Bases of 18138492740
- Binary: 100001110010010001101101111010001002
- Hexadecimal: 0x439236F44
- Base-36: 8BZ6UKK
Squares and roots of 18138492740
- 18138492740 squared (181384927402) is 329004918879032707600
- 18138492740 cubed (181384927403) is 5967653332511623705025142824000
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The
square root of 18138492740 is 134679.2216342225 -
The
cube root of 18138492740 is 2627.4455933761
Scales and comparisons
How big is 18138492740?- 18,138,492,740 seconds is equal to 576 years, 38 weeks, 6 days, 6 hours, 12 minutes, 20 seconds.
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To count from 1 to 18,138,492,740 would take you about one thousand, one hundred fifty-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 18138492740 cubic inches would be around 219 feet tall.
Recreational maths with 18138492740
- 18138492740 backwards is 04729483181
- The number of decimal digits it has is: 11
- The sum of 18138492740's digits is 47
- More coming soon!
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The information we have on file for 18138492740 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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