138135780
138,135,780 is an even composite number composed of five prime numbers multiplied together.
138135780 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 138135780:
22 × 35 × 5 × 43 × 661
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 43 × 661)See below for interesting mathematical facts about the number 138135780 from the Numbermatics database.
Names of 138135780
- Cardinal: 138135780 can be written as One hundred thirty-eight million, one hundred thirty-five thousand, seven hundred eighty.
Scientific notation
- Scientific notation: 1.3813578 × 108
Factors of 138135780
Divisors of 138135780
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 43 45 54 60 81 86 90 108 129 135 162 172 180 215 243 258 270 324 387 405 430 486 516 540 645 661 774 810 860 972 1161 1215 1290 1322 1548 1620 1935 1983 2322 2430 2580 2644 3305 3483 3870 3966 4644 4860 5805 5949 6610 6966 7740 7932 9915 10449 11610 11898 13220 13932 17415 17847 19830 20898 23220 23796 28423 29745 34830 35694 39660 41796 52245 53541 56846 59490 69660 71388 85269 89235 104490 107082 113692 118980 142115 160623 170538 178470 208980 214164 255807 267705 284230 321246 341076 356940 426345 511614 535410 568460 642492 767421 803115 852690 1023228 1070820 1279035 1534842 1606230 1705380 2302263 2558070 3069684 3212460 3837105 4604526 5116140 6906789 7674210 9209052 11511315 13813578 15348420 23022630 27627156 34533945 46045260 69067890 138135780
- Sum of all divisors σ(n): 445308864
- Sum of proper divisors (its aliquot sum) s(n): 307173084
- 138135780 is an abundant number, because the sum of its proper divisors (307173084) is greater than itself. Its abundance is 169037304
Bases of 138135780
- Binary: 10000011101111001000111001002
- Hexadecimal: 0x83BC8E4
- Base-36: 2A8Q90
Squares and roots of 138135780
- 138135780 squared (1381357802) is 19081493716208400
- 138135780 cubed (1381357803) is 2635837018053545976552000
-
The
square root of 138135780 is 11753.1178842041 -
The
cube root of 138135780 is 516.9343535979
Scales and comparisons
How big is 138135780?- 138,135,780 seconds is equal to 4 years, 20 weeks, 2 days, 19 hours, 3 minutes.
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To count from 1 to 138,135,780 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 138135780 cubic inches would be around 43.1 feet tall.
Recreational maths with 138135780
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