18311138928
18,311,138,928 is an even composite number composed of four prime numbers multiplied together.
18311138928 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 18311138928:
24 × 32 × 13339 × 9533
(2 × 2 × 2 × 2 × 3 × 3 × 13339 × 9533)See below for interesting mathematical facts about the number 18311138928 from the Numbermatics database.
Names of 18311138928
- Cardinal: 18311138928 can be written as Eighteen billion, three hundred eleven million, one hundred thirty-eight thousand, nine hundred twenty-eight.
Scientific notation
- Scientific notation: 1.8311138928 × 1010
Factors of 18311138928
Divisors of 18311138928
- Number of divisors d(n): 60
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 9533 13339 19066 26678 28599 38132 40017 53356 57198 76264 80034 85797 106712 114396 120051 152528 160068 171594 213424 228792 240102 320136 343188 457584 480204 640272 686376 960408 1372752 1920816 127160687 254321374 381482061 508642748 762964122 1017285496 1144446183 1525928244 2034570992 2288892366 3051856488 4577784732 6103712976 9155569464 18311138928
- Sum of all divisors σ(n): 51254974680
- Sum of proper divisors (its aliquot sum) s(n): 32943835752
- 18311138928 is an abundant number, because the sum of its proper divisors (32943835752) is greater than itself. Its abundance is 14632696824
Bases of 18311138928
- Binary: 100010000110110110111001110011100002
- Hexadecimal: 0x4436DCE70
- Base-36: 8ETZ980
Squares and roots of 18311138928
- 18311138928 squared (183111389282) is 335297808840516989184
- 18311138928 cubed (183111389283) is 6139684759932693184292497354752
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The
square root of 18311138928 is 135318.6569841719 -
The
cube root of 18311138928 is 2635.7554866175
Scales and comparisons
How big is 18311138928?- 18,311,138,928 seconds is equal to 582 years, 12 weeks, 2 days, 11 hours, 28 minutes, 48 seconds.
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To count from 1 to 18,311,138,928 would take you about one thousand, one hundred sixty-four 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 18311138928 cubic inches would be around 219.6 feet tall.
Recreational maths with 18311138928
- 18311138928 backwards is 82983111381
- The number of decimal digits it has is: 11
- The sum of 18311138928's digits is 45
- More coming soon!
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