81357696
81,357,696 is an even composite number composed of five prime numbers multiplied together.
81357696 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 81357696:
27 × 34 × 7 × 19 × 59
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 7 × 19 × 59)See below for interesting mathematical facts about the number 81357696 from the Numbermatics database.
Names of 81357696
- Cardinal: 81357696 can be written as Eighty-one million, three hundred fifty-seven thousand, six hundred ninety-six.
Scientific notation
- Scientific notation: 8.1357696 × 107
Factors of 81357696
Divisors of 81357696
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 27 28 32 36 38 42 48 54 56 57 59 63 64 72 76 81 84 96 108 112 114 118 126 128 133 144 152 162 168 171 177 189 192 216 224 228 236 252 266 288 304 324 336 342 354 378 384 399 413 432 448 456 472 504 513 531 532 567 576 608 648 672 684 708 756 798 826 864 896 912 944 1008 1026 1062 1064 1121 1134 1152 1197 1216 1239 1296 1344 1368 1416 1512 1539 1593 1596 1652 1728 1824 1888 2016 2052 2124 2128 2242 2268 2394 2432 2478 2592 2688 2736 2832 3024 3078 3186 3192 3304 3363 3456 3591 3648 3717 3776 4032 4104 4248 4256 4484 4536 4779 4788 4956 5184 5472 5664 6048 6156 6372 6384 6608 6726 7182 7296 7434 7552 7847 8064 8208 8496 8512 8968 9072 9558 9576 9912 10089 10368 10773 10944 11151 11328 12096 12312 12744 12768 13216 13452 14364 14868 15694 16416 16992 17024 17936 18144 19116 19152 19824 20178 21546 21888 22302 22656 23541 24192 24624 25488 25536 26432 26904 28728 29736 30267 31388 32832 33453 33984 35872 36288 38232 38304 39648 40356 43092 44604 47082 49248 50976 51072 52864 53808 57456 59472 60534 62776 65664 66906 67968 70623 71744 72576 76464 76608 79296 80712 86184 89208 90801 94164 98496 101952 107616 114912 118944 121068 125552 133812 141246 143488 152928 153216 158592 161424 172368 178416 181602 188328 196992 203904 211869 215232 229824 237888 242136 251104 267624 282492 305856 322848 344736 356832 363204 376656 423738 430464 459648 475776 484272 502208 535248 564984 611712 635607 645696 689472 713664 726408 753312 847476 968544 1004416 1070496 1129968 1271214 1291392 1378944 1427328 1452816 1506624 1694952 1937088 2140992 2259936 2542428 2905632 3013248 3389904 3874176 4281984 4519872 5084856 5811264 6779808 9039744 10169712 11622528 13559616 20339424 27119232 40678848 81357696
- Sum of all divisors σ(n): 296208000
- Sum of proper divisors (its aliquot sum) s(n): 214850304
- 81357696 is an abundant number, because the sum of its proper divisors (214850304) is greater than itself. Its abundance is 133492608
Bases of 81357696
- Binary: 1001101100101101011100000002
- Hexadecimal: 0x4D96B80
- Base-36: 1CFS00
Squares and roots of 81357696
- 81357696 squared (813576962) is 6619074698428416
- 81357696 cubed (813576963) is 538512667116030746689536
-
The
square root of 81357696 is 9019.8501096193 -
The
cube root of 81357696 is 433.3108332827
Scales and comparisons
How big is 81357696?- 81,357,696 seconds is equal to 2 years, 30 weeks, 3 days, 15 hours, 21 minutes, 36 seconds.
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To count from 1 to 81,357,696 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 81357696 cubic inches would be around 36.1 feet tall.
Recreational maths with 81357696
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