21025764942
21,025,764,942 is an even composite number composed of six prime numbers multiplied together.
21025764942 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21025764942:
2 × 3 × 7 × 13 × 31 × 1242217
See below for interesting mathematical facts about the number 21025764942 from the Numbermatics database.
Names of 21025764942
- Cardinal: 21025764942 can be written as Twenty-one billion, twenty-five million, seven hundred sixty-four thousand, nine hundred forty-two.
Scientific notation
- Scientific notation: 2.1025764942 × 1010
Factors of 21025764942
Divisors of 21025764942
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 6 7 13 14 21 26 31 39 42 62 78 91 93 182 186 217 273 403 434 546 651 806 1209 1302 2418 2821 5642 8463 16926 1242217 2484434 3726651 7453302 8695519 16148821 17391038 26086557 32297642 38508727 48446463 52173114 77017454 96892926 113041747 115526181 226083494 231052362 269561089 339125241 500613451 539122178 678250482 808683267 1001226902 1501840353 1617366534 3003680706 3504294157 7008588314 10512882471 21025764942
- Sum of all divisors σ(n): 53425311744
- Sum of proper divisors (its aliquot sum) s(n): 32399546802
- 21025764942 is an abundant number, because the sum of its proper divisors (32399546802) is greater than itself. Its abundance is 11373781860
Bases of 21025764942
- Binary: 100111001010011101110110110010011102
- Hexadecimal: 0x4E53BB64E
- Base-36: 9NQ7426
Squares and roots of 21025764942
- 21025764942 squared (210257649422) is 442082791396236263364
- 21025764942 cubed (210257649423) is 9295128856800483656987870184888
-
The
square root of 21025764942 is 145002.6377070431 -
The
cube root of 21025764942 is 2760.0520251167
Scales and comparisons
How big is 21025764942?- 21,025,764,942 seconds is equal to 668 years, 28 weeks, 5 days, 18 hours, 15 minutes, 42 seconds.
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To count from 1 to 21,025,764,942 would take you about one thousand, three hundred thirty-seven 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 21025764942 cubic inches would be around 230 feet tall.
Recreational maths with 21025764942
- 21025764942 backwards is 24946752012
- 21025764942 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21025764942's digits is 42
- More coming soon!
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The information we have on file for 21025764942 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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