138685456
138,685,456 is an even composite number composed of five prime numbers multiplied together.
138685456 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 138685456:
24 × 7 × 132 × 17 × 431
(2 × 2 × 2 × 2 × 7 × 13 × 13 × 17 × 431)See below for interesting mathematical facts about the number 138685456 from the Numbermatics database.
Names of 138685456
- Cardinal: 138685456 can be written as One hundred thirty-eight million, six hundred eighty-five thousand, four hundred fifty-six.
Scientific notation
- Scientific notation: 1.38685456 × 108
Factors of 138685456
Divisors of 138685456
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 4 7 8 13 14 16 17 26 28 34 52 56 68 91 104 112 119 136 169 182 208 221 238 272 338 364 431 442 476 676 728 862 884 952 1183 1352 1456 1547 1724 1768 1904 2366 2704 2873 3017 3094 3448 3536 4732 5603 5746 6034 6188 6896 7327 9464 11206 11492 12068 12376 14654 18928 20111 22412 22984 24136 24752 29308 39221 40222 44824 45968 48272 51289 58616 72839 78442 80444 89648 95251 102578 117232 145678 156884 160888 190502 205156 291356 313768 321776 381004 410312 509873 582712 627536 666757 762008 820624 1019746 1165424 1238263 1333514 1524016 2039492 2476526 2667028 4078984 4953052 5334056 8157968 8667841 9906104 10668112 17335682 19812208 34671364 69342728 138685456
- Sum of all divisors σ(n): 352905984
- Sum of proper divisors (its aliquot sum) s(n): 214220528
- 138685456 is an abundant number, because the sum of its proper divisors (214220528) is greater than itself. Its abundance is 75535072
Bases of 138685456
- Binary: 10000100010000101100000100002
- Hexadecimal: 0x8442C10
- Base-36: 2AKIDS
Squares and roots of 138685456
- 138685456 squared (1386854562) is 19233655705927936
- 138685456 cubed (1386854563) is 2667428312123617707298816
-
The
square root of 138685456 is 11776.4789304783 -
The
cube root of 138685456 is 517.6191154621
Scales and comparisons
How big is 138685456?- 138,685,456 seconds is equal to 4 years, 21 weeks, 2 days, 3 hours, 44 minutes, 16 seconds.
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To count from 1 to 138,685,456 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 138685456 cubic inches would be around 43.1 feet tall.
Recreational maths with 138685456
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The information we have on file for 138685456 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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