128387944321
128,387,944,321 is an odd composite number composed of five prime numbers multiplied together.
128387944321 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.
Prime factorization of 128387944321:
72 × 13 × 31 × 43 × 151201
(7 × 7 × 13 × 31 × 43 × 151201)See below for interesting mathematical facts about the number 128387944321 from the Numbermatics database.
Names of 128387944321
- Cardinal: 128387944321 can be written as One hundred twenty-eight billion, three hundred eighty-seven million, nine hundred forty-four thousand, three hundred twenty-one.
Scientific notation
- Scientific notation: 1.28387944321 × 1011
Factors of 128387944321
Divisors of 128387944321
- Number of divisors d(n): 48
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Complete list of divisors:
1 7 13 31 43 49 91 217 301 403 559 637 1333 1519 2107 2821 3913 9331 17329 19747 27391 65317 121303 151201 849121 1058407 1965613 4687231 6501643 7408849 13759291 32810617 45511501 60934003 84521359 96315037 201550933 229674319 318580507 426538021 591649513 1410856531 2620162129 2985766147 4141546591 9875995717 18341134903 128387944321
- Sum of all divisors σ(n): 169888147968
- Sum of proper divisors (its aliquot sum) s(n): 41500203647
- 128387944321 is a deficient number, because the sum of its proper divisors (41500203647) is less than itself. Its deficiency is 86887740674
Bases of 128387944321
- Binary: 11101111001001000010010001111100000012
- Hexadecimal: 0x1DE4848F81
- Base-36: 1MZAV7UP
Squares and roots of 128387944321
- 128387944321 squared (1283879443212) is 16483464246972196151041
- 128387944321 cubed (1283879443213) is 2116278089957460512274942414188161
-
The
square root of 128387944321 is 358312.6348888635 -
The
cube root of 128387944321 is 5044.7705146441
Scales and comparisons
How big is 128387944321?- 128,387,944,321 seconds is equal to 4,082 years, 17 weeks, 4 days, 13 hours, 52 minutes, 1 second.
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To count from 1 to 128,387,944,321 would take you about eight 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 128387944321 cubic inches would be around 420.4 feet tall.
Recreational maths with 128387944321
- 128387944321 backwards is 123449783821
- The number of decimal digits it has is: 12
- The sum of 128387944321's digits is 52
- More coming soon!
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