138689345538
138,689,345,538 is an even composite number composed of five prime numbers multiplied together.
138689345538 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.
Prime factorization of 138689345538:
2 × 32 × 887 × 2113 × 4111
(2 × 3 × 3 × 887 × 2113 × 4111)See below for interesting mathematical facts about the number 138689345538 from the Numbermatics database.
Names of 138689345538
- Cardinal: 138689345538 can be written as One hundred thirty-eight billion, six hundred eighty-nine million, three hundred forty-five thousand, five hundred thirty-eight.
Scientific notation
- Scientific notation: 1.38689345538 × 1011
Factors of 138689345538
Divisors of 138689345538
- Number of divisors d(n): 48
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Complete list of divisors:
1 2 3 6 9 18 887 1774 2113 2661 4111 4226 5322 6339 7983 8222 12333 12678 15966 19017 24666 36999 38034 73998 1874231 3646457 3748462 5622693 7292914 8686543 10939371 11245386 16868079 17373086 21878742 26059629 32818113 33736158 52119258 65636226 78178887 156357774 7704963641 15409927282 23114890923 46229781846 69344672769 138689345538
- Sum of all divisors σ(n): 301047941376
- Sum of proper divisors (its aliquot sum) s(n): 162358595838
- 138689345538 is an abundant number, because the sum of its proper divisors (162358595838) is greater than itself. Its abundance is 23669250300
Bases of 138689345538
- Binary: 100000010010101000011101111000000000102
- Hexadecimal: 0x204A877802
- Base-36: 1RPO1ZWI
Squares and roots of 138689345538
- 138689345538 squared (1386893455382) is 19234734565758760509444
- 138689345538 cubed (1386893455383) is 2667652748522229119444867828260872
-
The
square root of 138689345538 is 372410.1845250745 -
The
cube root of 138689345538 is 5176.2395442275
Scales and comparisons
How big is 138689345538?- 138,689,345,538 seconds is equal to 4,409 years, 46 weeks, 2 days, 18 hours, 12 minutes, 18 seconds.
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To count from 1 to 138,689,345,538 would take you about eight thousand, eight hundred nineteen 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 138689345538 cubic inches would be around 431.4 feet tall.
Recreational maths with 138689345538
- 138689345538 backwards is 835543986831
- The number of decimal digits it has is: 12
- The sum of 138689345538's digits is 63
- More coming soon!
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