138728969424
138,728,969,424 is an even composite number composed of four prime numbers multiplied together.
138728969424 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 138728969424:
24 × 32 × 2539 × 379439
(2 × 2 × 2 × 2 × 3 × 3 × 2539 × 379439)See below for interesting mathematical facts about the number 138728969424 from the Numbermatics database.
Names of 138728969424
- Cardinal: 138728969424 can be written as One hundred thirty-eight billion, seven hundred twenty-eight million, nine hundred sixty-nine thousand, four hundred twenty-four.
Scientific notation
- Scientific notation: 1.38728969424 × 1011
Factors of 138728969424
Divisors of 138728969424
- 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 2539 5078 7617 10156 15234 20312 22851 30468 40624 45702 60936 91404 121872 182808 365616 379439 758878 1138317 1517756 2276634 3035512 3414951 4553268 6071024 6829902 9106536 13659804 18213072 27319608 54639216 963395621 1926791242 2890186863 3853582484 5780373726 7707164968 8670560589 11560747452 15414329936 17341121178 23121494904 34682242356 46242989808 69364484712 138728969424
- Sum of all divisors σ(n): 388402372800
- Sum of proper divisors (its aliquot sum) s(n): 249673403376
- 138728969424 is an abundant number, because the sum of its proper divisors (249673403376) is greater than itself. Its abundance is 110944433952
Bases of 138728969424
- Binary: 100000010011001110010000010100110100002
- Hexadecimal: 0x204CE414D0
- Base-36: 1RQBN9W0
Squares and roots of 138728969424
- 138728969424 squared (1387289694242) is 19245726957445126891776
- 138728969424 cubed (1387289694243) is 2669939866622057557726992861057024
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The
square root of 138728969424 is 372463.3799771461 -
The
cube root of 138728969424 is 5176.7324520643
Scales and comparisons
How big is 138728969424?- 138,728,969,424 seconds is equal to 4,411 years, 7 weeks, 6 days, 8 hours, 50 minutes, 24 seconds.
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To count from 1 to 138,728,969,424 would take you about eight thousand, eight hundred twenty-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 138728969424 cubic inches would be around 431.4 feet tall.
Recreational maths with 138728969424
- 138728969424 backwards is 424969827831
- The number of decimal digits it has is: 12
- The sum of 138728969424's digits is 63
- More coming soon!
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