81335072
81,335,072 is an even composite number composed of six prime numbers multiplied together.
81335072 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 81335072:
25 × 7 × 13 × 17 × 31 × 53
(2 × 2 × 2 × 2 × 2 × 7 × 13 × 17 × 31 × 53)See below for interesting mathematical facts about the number 81335072 from the Numbermatics database.
Names of 81335072
- Cardinal: 81335072 can be written as Eighty-one million, three hundred thirty-five thousand and seventy-two.
Scientific notation
- Scientific notation: 8.1335072 × 107
Factors of 81335072
Divisors of 81335072
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 4 7 8 13 14 16 17 26 28 31 32 34 52 53 56 62 68 91 104 106 112 119 124 136 182 208 212 217 221 224 238 248 272 364 371 403 416 424 434 442 476 496 527 544 689 728 742 806 848 868 884 901 952 992 1054 1378 1456 1484 1547 1612 1643 1696 1736 1768 1802 1904 2108 2756 2821 2912 2968 3094 3224 3286 3472 3536 3604 3689 3808 4216 4823 5512 5642 5936 6188 6307 6448 6572 6851 6944 7072 7208 7378 8432 9646 11024 11284 11501 11713 11872 12376 12614 12896 13144 13702 14416 14756 16864 19292 21359 22048 22568 23002 23426 24752 25228 26288 27404 27931 28832 29512 38584 42718 45136 46004 46852 47957 49504 50456 52576 54808 55862 59024 77168 81991 85436 90272 92008 93704 95914 100912 109616 111724 118048 149513 154336 163982 170872 184016 187408 191828 195517 201824 219232 223448 299026 327964 341744 363103 368032 374816 383656 391034 446896 598052 655928 683488 726206 767312 782068 893792 1196104 1311856 1452412 1534624 1564136 2392208 2541721 2623712 2904824 3128272 4784416 5083442 5809648 6256544 10166884 11619296 20333768 40667536 81335072
- Sum of all divisors σ(n): 219469824
- Sum of proper divisors (its aliquot sum) s(n): 138134752
- 81335072 is an abundant number, because the sum of its proper divisors (138134752) is greater than itself. Its abundance is 56799680
Bases of 81335072
- Binary: 1001101100100010011001000002
- Hexadecimal: 0x4D91320
- Base-36: 1CFAJK
Squares and roots of 81335072
- 81335072 squared (813350722) is 6615393937245184
- 81335072 cubed (813350723) is 538063542194200522293248
-
The
square root of 81335072 is 9018.5958995843 -
The
cube root of 81335072 is 433.2706644415
Scales and comparisons
How big is 81335072?- 81,335,072 seconds is equal to 2 years, 30 weeks, 3 days, 9 hours, 4 minutes, 32 seconds.
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To count from 1 to 81,335,072 would take you about three 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 81335072 cubic inches would be around 36.1 feet tall.
Recreational maths with 81335072
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The information we have on file for 81335072 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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