138660830
138,660,830 is an even composite number composed of seven prime numbers multiplied together.
138660830 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 138660830:
2 × 5 × 7 × 11 × 31 × 37 × 157
See below for interesting mathematical facts about the number 138660830 from the Numbermatics database.
Names of 138660830
- Cardinal: 138660830 can be written as One hundred thirty-eight million, six hundred sixty thousand, eight hundred thirty.
Scientific notation
- Scientific notation: 1.3866083 × 108
Factors of 138660830
Divisors of 138660830
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 5 7 10 11 14 22 31 35 37 55 62 70 74 77 110 154 155 157 185 217 259 310 314 341 370 385 407 434 518 682 770 785 814 1085 1099 1147 1295 1570 1705 1727 2035 2170 2198 2294 2387 2590 2849 3410 3454 4070 4774 4867 5495 5698 5735 5809 8029 8635 9734 10990 11470 11618 11935 12089 12617 14245 16058 17270 23870 24178 24335 25234 28490 29045 34069 40145 40663 48670 53537 58090 60445 63085 63899 68138 80290 81326 88319 107074 120890 126170 127798 170345 176638 180079 203315 267685 319495 340690 360158 374759 406630 441595 447293 535370 638990 749518 883190 894586 900395 1260553 1800790 1873795 1980869 2236465 2521106 3747590 3961738 4472930 6302765 9904345 12605530 13866083 19808690 27732166 69330415 138660830
- Sum of all divisors σ(n): 331997184
- Sum of proper divisors (its aliquot sum) s(n): 193336354
- 138660830 is an abundant number, because the sum of its proper divisors (193336354) is greater than itself. Its abundance is 54675524
Bases of 138660830
- Binary: 10000100001111001011110111102
- Hexadecimal: 0x843CBDE
- Base-36: 2AJZDQ
Squares and roots of 138660830
- 138660830 squared (1386608302) is 19226825776288900
- 138660830 cubed (1386608303) is 2666007620405613193787000
-
The
square root of 138660830 is 11775.4333253601 -
The
cube root of 138660830 is 517.5884762413
Scales and comparisons
How big is 138660830?- 138,660,830 seconds is equal to 4 years, 21 weeks, 1 day, 20 hours, 53 minutes, 50 seconds.
-
To count from 1 to 138,660,830 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 138660830 cubic inches would be around 43.1 feet tall.
Recreational maths with 138660830
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The information we have on file for 138660830 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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