138981640
138,981,640 is an even composite number composed of five prime numbers multiplied together.
138981640 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 138981640:
23 × 5 × 72 × 23 × 3083
(2 × 2 × 2 × 5 × 7 × 7 × 23 × 3083)See below for interesting mathematical facts about the number 138981640 from the Numbermatics database.
Names of 138981640
- Cardinal: 138981640 can be written as One hundred thirty-eight million, nine hundred eighty-one thousand, six hundred forty.
Scientific notation
- Scientific notation: 1.3898164 × 108
Factors of 138981640
Divisors of 138981640
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 7 8 10 14 20 23 28 35 40 46 49 56 70 92 98 115 140 161 184 196 230 245 280 322 392 460 490 644 805 920 980 1127 1288 1610 1960 2254 3083 3220 4508 5635 6166 6440 9016 11270 12332 15415 21581 22540 24664 30830 43162 45080 61660 70909 86324 107905 123320 141818 151067 172648 215810 283636 302134 354545 431620 496363 567272 604268 709090 755335 863240 992726 1208536 1418180 1510670 1985452 2481815 2836360 3021340 3474541 3970904 4963630 6042680 6949082 9927260 13898164 17372705 19854520 27796328 34745410 69490820 138981640
- Sum of all divisors σ(n): 379702080
- Sum of proper divisors (its aliquot sum) s(n): 240720440
- 138981640 is an abundant number, because the sum of its proper divisors (240720440) is greater than itself. Its abundance is 101738800
Bases of 138981640
- Binary: 10000100100010110001000010002
- Hexadecimal: 0x848B108
- Base-36: 2AQUX4
Squares and roots of 138981640
- 138981640 squared (1389816402) is 19315896257089600
- 138981640 cubed (1389816403) is 2684554939880174234944000
-
The
square root of 138981640 is 11789.0474594007 -
The
cube root of 138981640 is 517.9873383805
Scales and comparisons
How big is 138981640?- 138,981,640 seconds is equal to 4 years, 21 weeks, 5 days, 14 hours, 40 seconds.
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To count from 1 to 138,981,640 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 138981640 cubic inches would be around 43.2 feet tall.
Recreational maths with 138981640
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The information we have on file for 138981640 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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