2138999440
2,138,999,440 is an even composite number composed of five prime numbers multiplied together.
2138999440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 2138999440:
24 × 5 × 53 × 131 × 3851
(2 × 2 × 2 × 2 × 5 × 53 × 131 × 3851)See below for interesting mathematical facts about the number 2138999440 from the Numbermatics database.
Names of 2138999440
- Cardinal: 2138999440 can be written as Two billion, one hundred thirty-eight million, nine hundred ninety-nine thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.13899944 × 109
Factors of 2138999440
Divisors of 2138999440
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 16 20 40 53 80 106 131 212 262 265 424 524 530 655 848 1048 1060 1310 2096 2120 2620 3851 4240 5240 6943 7702 10480 13886 15404 19255 27772 30808 34715 38510 55544 61616 69430 77020 111088 138860 154040 204103 277720 308080 408206 504481 555440 816412 1008962 1020515 1632824 2017924 2041030 2522405 3265648 4035848 4082060 5044810 8071696 8164120 10089620 16328240 20179240 26737493 40358480 53474986 106949972 133687465 213899944 267374930 427799888 534749860 1069499720 2138999440
- Sum of all divisors σ(n): 5107012416
- Sum of proper divisors (its aliquot sum) s(n): 2968012976
- 2138999440 is an abundant number, because the sum of its proper divisors (2968012976) is greater than itself. Its abundance is 829013536
Bases of 2138999440
- Binary: 11111110111111010001010100100002
- Hexadecimal: 0x7F7E8A90
- Base-36: ZDI6J4
Squares and roots of 2138999440
- 2138999440 squared (21389994402) is 4575318604320313600
- 2138999440 cubed (21389994403) is 9786603932462732371024384000
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The
square root of 2138999440 is 46249.3182652459 -
The
cube root of 2138999440 is 1288.4578731661
Scales and comparisons
How big is 2138999440?- 2,138,999,440 seconds is equal to 68 years, 4 days, 22 hours, 30 minutes, 40 seconds.
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To count from 1 to 2,138,999,440 would take you about one hundred thirty-six 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 2138999440 cubic inches would be around 107.4 feet tall.
Recreational maths with 2138999440
- 2138999440 backwards is 0449998312
- The number of decimal digits it has is: 10
- The sum of 2138999440's digits is 49
- More coming soon!
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