138450390
138,450,390 is an even composite number composed of six prime numbers multiplied together.
138450390 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 138450390:
2 × 3 × 5 × 13 × 151 × 2351
See below for interesting mathematical facts about the number 138450390 from the Numbermatics database.
Names of 138450390
- Cardinal: 138450390 can be written as One hundred thirty-eight million, four hundred fifty thousand, three hundred ninety.
Scientific notation
- Scientific notation: 1.3845039 × 108
Factors of 138450390
Divisors of 138450390
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 10 13 15 26 30 39 65 78 130 151 195 302 390 453 755 906 1510 1963 2265 2351 3926 4530 4702 5889 7053 9815 11755 11778 14106 19630 23510 29445 30563 35265 58890 61126 70530 91689 152815 183378 305630 355001 458445 710002 916890 1065003 1775005 2130006 3550010 4615013 5325015 9230026 10650030 13845039 23075065 27690078 46150130 69225195 138450390
- Sum of all divisors σ(n): 360364032
- Sum of proper divisors (its aliquot sum) s(n): 221913642
- 138450390 is an abundant number, because the sum of its proper divisors (221913642) is greater than itself. Its abundance is 83463252
Bases of 138450390
- Binary: 10000100000010010101110101102
- Hexadecimal: 0x84095D6
- Base-36: 2AFH06
Squares and roots of 138450390
- 138450390 squared (1384503902) is 19168510491152100
- 138450390 cubed (1384503903) is 2653887753219099794319000
-
The
square root of 138450390 is 11766.4943802307 -
The
cube root of 138450390 is 517.3265025529
Scales and comparisons
How big is 138450390?- 138,450,390 seconds is equal to 4 years, 20 weeks, 6 days, 10 hours, 26 minutes, 30 seconds.
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To count from 1 to 138,450,390 would take you about 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 138450390 cubic inches would be around 43.1 feet tall.
Recreational maths with 138450390
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