81387026734720
81,387,026,734,720 is an even composite number composed of five prime numbers multiplied together.
81387026734720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of five hundred seventy-six divisors.
Prime factorization of 81387026734720:
27 × 5 × 72 × 192 × 1933
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 19 × 19 × 193 × 193 × 193)See below for interesting mathematical facts about the number 81387026734720 from the Numbermatics database.
Names of 81387026734720
- Cardinal: 81387026734720 can be written as Eighty-one trillion, three hundred eighty-seven billion, twenty-six million, seven hundred thirty-four thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 8.138702673472 × 1013
Factors of 81387026734720
Divisors of 81387026734720
- Number of divisors d(n): 576
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 49 56 64 70 76 80 95 98 112 128 133 140 152 160 190 193 196 224 245 266 280 304 320 361 380 386 392 448 490 532 560 608 640 665 722 760 772 784 896 931 965 980 1064 1120 1216 1330 1351 1444 1520 1544 1568 1805 1862 1930 1960 2128 2240 2432 2527 2660 2702 2888 3040 3088 3136 3610 3667 3724 3860 3920 4256 4480 4655 5054 5320 5404 5776 6080 6176 6272 6755 7220 7334 7448 7720 7840 8512 9310 9457 10108 10640 10808 11552 12160 12352 12635 13510 14440 14668 14896 15440 15680 17024 17689 18335 18620 18914 20216 21280 21616 23104 24704 25270 25669 27020 28880 29336 29792 30880 31360 35378 36670 37240 37249 37828 40432 42560 43232 46208 47285 50540 51338 54040 57760 58672 59584 61760 69673 70756 73340 74480 74498 75656 80864 85120 86464 88445 94570 101080 102676 108080 115520 117344 119168 123520 128345 139346 141512 146680 148960 148996 151312 161728 172928 176890 179683 186245 189140 202160 205352 216160 231040 234688 256690 260743 278692 283024 293360 297920 297992 302624 323456 348365 353780 359366 372490 378280 404320 410704 432320 469376 487711 513380 521486 557384 566048 586720 595840 595984 605248 696730 707560 707731 718732 744980 756560 808640 821408 864640 898415 975422 1026760 1042972 1114768 1132096 1173440 1191968 1210496 1303715 1393460 1415120 1415462 1437464 1489960 1513120 1617280 1642816 1796830 1825201 1950844 2053520 2085944 2229536 2264192 2346880 2383936 2438555 2607430 2786920 2830240 2830924 2874928 2979920 3026240 3285632 3413977 3538655 3593660 3650402 3901688 4107040 4171888 4459072 4767872 4877110 4954117 5214860 5573840 5660480 5661848 5749856 5959840 6052480 6827954 7077310 7187320 7189057 7300804 7803376 8214080 8343776 8918144 9126005 9754220 9908234 10429720 11147680 11320960 11323696 11499712 11919680 13446889 13655908 14154620 14374640 14378114 14601608 15606752 16428160 16687552 17069885 18252010 19508440 19816468 20859440 22295360 22647392 22999424 23839360 24770585 26893778 27311816 28309240 28749280 28756228 29203216 31213504 33375104 34139770 34678819 35945285 36504020 39016880 39632936 41718880 44590720 45294784 49541170 50323399 53787556 54623632 56618480 57498560 57512456 58406432 62427008 67234445 68279540 69357638 71890570 73008040 78033760 79265872 83437760 90589568 94128223 99082340 100646798 107575112 109247264 113236960 114997120 115024912 116812864 134468890 136559080 136592083 138715276 143781140 146016080 156067520 158531744 166875520 173394095 188256446 198164680 201293596 215150224 218494528 226473920 230049824 233625728 251616995 268937780 273118160 273184166 277430552 287562280 292032160 312135040 317063488 346788190 352263793 376512892 396329360 402587192 430300448 436989056 452947840 460099648 470641115 503233990 537875560 546236320 546368332 554861104 575124560 584064320 634126976 658897561 682960415 693576380 704527586 753025784 792658720 805174384 860600896 920199296 941282230 956144581 1006467980 1075751120 1092472640 1092736664 1109722208 1150249120 1168128640 1317795122 1365920830 1387152760 1409055172 1506051568 1585317440 1610348768 1721201792 1761318965 1882564460 1912289162 2012935960 2151502240 2184945280 2185473328 2219444416 2300498240 2595249577 2635590244 2731841660 2774305520 2818110344 3012103136 3170634880 3220697536 3294487805 3522637930 3765128920 3824578324 4025871920 4303004480 4370946656 4438888832 4600996480 4780722905 5190499154 5271180488 5463683320 5548611040 5636220688 6024206272 6441395072 6588975610 6693012067 7045275860 7530257840 7649156648 8051743840 8606008960 8741893312 9561445810 10380998308 10542360976 10927366640 11097222080 11272441376 12048412544 12976247885 13177951220 13386024134 14090551720 15060515680 15298313296 16103487680 17483786624 18166747039 19122891620 20761996616 21084721952 21854733280 22194444160 22544882752 25952495770 26355902440 26772048268 28181103440 30121031360 30596626592 32206975360 33465060335 36333494078 38245783240 41523993232 42169443904 43709466560 45089765504 51904991540 52711804880 53544096536 56362206880 60242062720 61193253184 66930120670 72666988156 76491566480 83047986464 84338887808 87418933120 90833735195 103809983080 105423609760 107088193072 112724413760 122386506368 127167229273 133860241340 145333976312 152983132960 166095972928 181667470390 207619966160 210847219520 214176386144 225448827520 254334458546 267720482680 290667952624 305966265920 332191945856 363334940780 415239932320 421694439040 428352772288 508668917092 535440965360 581335905248 611932531840 635836146365 726669881560 830479864640 856705544576 1017337834184 1070881930720 1162671810496 1271672292730 1453339763120 1660959729280 2034675668368 2141763861440 2325343620992 2543344585460 2906679526240 4069351336736 4283527722880 5086689170920 5813359052480 8138702673472 10173378341840 11626718104960 16277405346944 20346756683680 40693513367360 81387026734720
- Sum of all divisors σ(n): 240114987765000
- Sum of proper divisors (its aliquot sum) s(n): 158727961030280
- 81387026734720 is an abundant number, because the sum of its proper divisors (158727961030280) is greater than itself. Its abundance is 77340934295560
Bases of 81387026734720
- Binary: 100101000000101011001001101000101011110100000002
- Hexadecimal: 0x4A0564D15E80
- Base-36: SUKOMD7R4
Squares and roots of 81387026734720
- 81387026734720 squared (813870267347202) is 6623848120718028025253478400
- 81387026734720 cubed (813870267347203) is 539095304087602976813983053845474050048000
-
The
square root of 81387026734720 is 9021475.8623364947 -
The
cube root of 81387026734720 is 43336.2898826771
Scales and comparisons
How big is 81387026734720?- 81,387,026,734,720 seconds is equal to 2,587,855 years, 36 weeks, 4 days, 2 hours, 18 minutes, 40 seconds.
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To count from 1 to 81,387,026,734,720 would take you about six million, four hundred sixty-nine thousand, six hundred thirty-nine 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 81387026734720 cubic inches would be around 3611.4 feet tall.
Recreational maths with 81387026734720
- 81387026734720 backwards is 02743762078318
- The number of decimal digits it has is: 14
- The sum of 81387026734720's digits is 58
- More coming soon!
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The information we have on file for 81387026734720 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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