81329726449280
81,329,726,449,280 is an even composite number composed of five prime numbers multiplied together.
81329726449280 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 81329726449280:
27 × 5 × 17 × 312 × 27892
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 17 × 31 × 31 × 2789 × 2789)See below for interesting mathematical facts about the number 81329726449280 from the Numbermatics database.
Names of 81329726449280
- Cardinal: 81329726449280 can be written as Eighty-one trillion, three hundred twenty-nine billion, seven hundred twenty-six million, four hundred forty-nine thousand, two hundred eighty.
Scientific notation
- Scientific notation: 8.132972644928 × 1013
Factors of 81329726449280
Divisors of 81329726449280
- Number of divisors d(n): 288
-
Complete list of divisors:
1 2 4 5 8 10 16 17 20 31 32 34 40 62 64 68 80 85 124 128 136 155 160 170 248 272 310 320 340 496 527 544 620 640 680 961 992 1054 1088 1240 1360 1922 1984 2108 2176 2480 2635 2720 2789 3844 3968 4216 4805 4960 5270 5440 5578 7688 8432 9610 9920 10540 10880 11156 13945 15376 16337 16864 19220 19840 21080 22312 27890 30752 32674 33728 38440 42160 44624 47413 55780 61504 65348 67456 76880 81685 84320 86459 89248 94826 111560 123008 130696 153760 163370 168640 172918 178496 189652 223120 237065 261392 307520 326740 337280 345836 356992 379304 432295 446240 474130 522784 615040 653480 691672 758608 864590 892480 948260 1045568 1306960 1383344 1469803 1517216 1729180 1784960 1896520 2091136 2613920 2680229 2766688 2939606 3034432 3458360 3793040 5227840 5360458 5533376 5879212 6068864 6916720 7349015 7586080 7778521 10455680 10720916 11066752 11758424 13401145 13833440 14698030 15172160 15557042 21441832 23516848 26802290 27666880 29396060 30344320 31114084 38892605 42883664 45563893 47033696 53604580 55333760 58792120 62228168 77785210 85767328 91127786 94067392 107209160 117584240 124456336 132234857 155570420 171534656 182255572 188134784 214418320 227819465 235168480 241134151 248912672 264469714 311140840 343069312 364511144 428836640 455638930 470336960 482268302 497825344 528939428 622281680 661174285 729022288 857673280 911277860 940673920 964536604 995650688 1057878856 1205670755 1244563360 1322348570 1458044576 1715346560 1822555720 1929073208 2115757712 2411341510 2489126720 2644697140 2916089152 3645111440 3858146416 4099280567 4231515424 4822683020 4978253440 5289394280 5832178304 7290222880 7475158681 7716292832 8198561134 8463030848 9645366040 10578788560 14580445760 14950317362 15432585664 16397122268 16926061696 19290732080 20496402835 21157577120 29160891520 29900634724 30865171328 32794244536 37375793405 38581464160 40992805670 42315154240 59801269448 65588489072 74751586810 77162928320 81985611340 84630308480 119602538896 127077697577 131176978144 149503173620 154325856640 163971222680 239205077792 254155395154 262353956288 299006347240 327942445360 478410155584 508310790308 524707912576 598012694480 635388487885 655884890720 956820311168 1016621580616 1196025388960 1270776975770 1311769781440 2033243161232 2392050777920 2541553951540 2623539562880 4066486322464 4784101555840 5083107903080 8132972644928 10166215806160 16265945289856 20332431612320 40664863224640 81329726449280
- Sum of all divisors σ(n): 212797223805420
- Sum of proper divisors (its aliquot sum) s(n): 131467497356140
- 81329726449280 is an abundant number, because the sum of its proper divisors (131467497356140) is greater than itself. Its abundance is 50137770906860
Bases of 81329726449280
- Binary: 100100111111000000011010111010001100110100000002
- Hexadecimal: 0x49F80D746680
- Base-36: STUCZ98JK
Squares and roots of 81329726449280
- 81329726449280 squared (813297264492802) is 6614524404314714796412518400
- 81329726449280 cubed (813297264492803) is 537957460395002496530890968174174666752000
-
The
square root of 81329726449280 is 9018299.5320226529 -
The
cube root of 81329726449280 is 43326.1172345017
Scales and comparisons
How big is 81329726449280?- 81,329,726,449,280 seconds is equal to 2,586,033 years, 38 weeks, 8 hours, 21 minutes, 20 seconds.
-
To count from 1 to 81,329,726,449,280 would take you about six million, four hundred sixty-five thousand and eighty-four 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 81329726449280 cubic inches would be around 3610.5 feet tall.
Recreational maths with 81329726449280
- 81329726449280 backwards is 08294462792318
- The number of decimal digits it has is: 14
- The sum of 81329726449280's digits is 65
- More coming soon!
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The information we have on file for 81329726449280 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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