81322728929361920
81,322,728,929,361,920 is an even composite number composed of six prime numbers multiplied together.
81322728929361920 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one thousand, eight hundred seventy-two divisors.
Prime factorization of 81322728929361920:
225 × 5 × 7 × 11 × 132 × 1932
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 11 × 13 × 13 × 193 × 193)See below for interesting mathematical facts about the number 81322728929361920 from the Numbermatics database.
Names of 81322728929361920
- Cardinal: 81322728929361920 can be written as Eighty-one quadrillion, three hundred twenty-two trillion, seven hundred twenty-eight billion, nine hundred twenty-nine million, three hundred sixty-one thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 8.132272892936192 × 1016
Factors of 81322728929361920
Divisors of 81322728929361920
- Number of divisors d(n): 1872
-
Complete list of divisors:
1 2 4 5 7 8 10 11 13 14 16 20 22 26 28 32 35 40 44 52 55 56 64 65 70 77 80 88 91 104 110 112 128 130 140 143 154 160 169 176 182 193 208 220 224 256 260 280 286 308 320 338 352 364 385 386 416 440 448 455 512 520 560 572 616 640 676 704 715 728 770 772 832 845 880 896 910 965 1001 1024 1040 1120 1144 1183 1232 1280 1351 1352 1408 1430 1456 1540 1544 1664 1690 1760 1792 1820 1859 1930 2002 2048 2080 2123 2240 2288 2366 2464 2509 2560 2702 2704 2816 2860 2912 3080 3088 3328 3380 3520 3584 3640 3718 3860 4004 4096 4160 4246 4480 4576 4732 4928 5005 5018 5120 5404 5408 5632 5720 5824 5915 6160 6176 6656 6755 6760 7040 7168 7280 7436 7720 8008 8192 8320 8492 8960 9152 9295 9464 9856 10010 10036 10240 10615 10808 10816 11264 11440 11648 11830 12320 12352 12545 13013 13312 13510 13520 14080 14336 14560 14861 14872 15440 16016 16384 16640 16984 17563 17920 18304 18590 18928 19712 20020 20072 20480 21230 21616 21632 22528 22880 23296 23660 24640 24704 25090 26026 26624 27020 27040 27599 28160 28672 29120 29722 29744 30880 32032 32617 32768 33280 33968 35126 35840 36608 37180 37249 37856 39424 40040 40144 40960 42460 43232 43264 45056 45760 46592 47320 49280 49408 50180 52052 53248 54040 54080 55198 56320 57344 58240 59444 59488 61760 64064 65065 65234 65536 66560 67936 70252 71680 73216 74305 74360 74498 75712 78848 80080 80288 81920 84920 86464 86528 87815 90112 91520 93184 94640 98560 98816 100360 104104 106496 108080 108160 110396 112640 114688 116480 118888 118976 123520 128128 130130 130468 131072 133120 135872 137995 140504 143360 146432 148610 148720 148996 151424 157696 160160 160576 163085 163840 169840 172928 173056 175630 180224 183040 186245 186368 189280 193193 197120 197632 200720 208208 212992 216160 216320 220792 225280 228319 229376 232960 237776 237952 247040 256256 260260 260743 260936 262144 266240 271744 275990 281008 286720 292864 297220 297440 297992 302848 315392 320320 321152 326170 327680 339680 345856 346112 351260 358787 360448 366080 372490 372736 378560 386386 394240 395264 401440 409739 416416 425984 432320 432640 441584 450560 456638 458752 465920 475552 475904 484237 494080 512512 520520 521486 521872 524288 532480 543488 551980 562016 573440 585728 594440 594880 595984 605696 630784 640640 642304 652340 655360 679360 691712 692224 702520 717574 720896 732160 744980 745472 757120 772772 788480 790528 802880 819478 832832 851968 864640 865280 883168 901120 913276 917504 931840 951104 951808 965965 968474 988160 1025024 1041040 1042972 1043744 1048576 1064960 1086976 1103960 1124032 1141595 1146880 1171456 1188880 1189760 1191968 1211392 1261568 1281280 1284608 1303715 1304680 1310720 1358720 1383424 1384448 1405040 1435148 1441792 1464320 1489960 1490944 1514240 1545544 1576960 1581056 1605760 1638956 1665664 1703936 1729280 1730560 1766336 1793935 1802240 1826552 1835008 1863680 1902208 1903616 1931930 1936948 1976320 2048695 2050048 2082080 2085944 2087488 2097152 2129920 2173952 2207920 2248064 2283190 2293760 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436355645440 436643823616 444289384448 451231406080 463034384384 469921464320 470269296640 478819647488 496354546688 498652413952 506443857920 507759296512 515693035520 537053102080 545804779520 546817703936 547222454272 555361730560 567262339072 578792980480 589316489216 598524559360 610897903616 620443183360 623315517440 624934518784 634699120640 658377015296 683522129920 684028067840 698169032704 709077923840 721970249728 736645611520 751874342912 752430874624 763622379520 781168148480 810310172672 822971269120 825108856832 859284963328 872711290880 888578768896 902462812160 926068768768 939842928640 940538593280 957639294976 992709093376 1012887715840 1015518593024 1031386071040 1074106204160 1091609559040 1093635407872 1094444908544 1110723461120 1134524678144 1157585960960 1197049118720 1221795807232 1240886366720 1246631034880 1249869037568 1269398241280 1316754030592 1367044259840 1368056135680 1396338065408 1418155847680 1443940499456 1473291223040 1503748685824 1504861749248 1527244759040 1562336296960 1620620345344 1645942538240 1650217713664 1718569926656 1745422581760 1777157537792 1804925624320 1879685857280 1881077186560 1915278589952 1985418186752 2025775431680 2031037186048 2062772142080 2148212408320 2183219118080 2187270815744 2221446922240 2269049356288 2315171921920 2394098237440 2443591614464 2481772733440 2493262069760 2538796482560 2633508061184 2734088519680 2736112271360 2792676130816 2836311695360 2887880998912 2946582446080 3007497371648 3009723498496 3054489518080 3124672593920 3241240690688 3291885076480 3300435427328 3437139853312 3490845163520 3554315075584 3609851248640 3759371714560 3762154373120 3830557179904 3970836373504 4051550863360 4062074372096 4125544284160 4296424816640 4374541631488 4442893844480 4538098712576 4630343843840 4788196474880 4887183228928 4963545466880 5077592965120 5267016122368 5468177039360 5472224542720 5585352261632 5672623390720 5775761997824 6014994743296 6019446996992 6108979036160 6249345187840 6482481381376 6583770152960 6600870854656 6874279706624 6981690327040 7108630151168 7219702497280 7518743429120 7524308746240 7661114359808 7941672747008 8103101726720 8124148744192 8251088568320 8592849633280 8749083262976 8885787688960 9076197425152 9576392949760 9774366457856 9927090933760 10155185930240 10534032244736 10936354078720 11170704523264 11345246781440 11551523995648 12029989486592 12038893993984 12217958072320 13167540305920 13201741709312 13748559413248 13963380654080 14217260302336 14439404994560 15037486858240 15048617492480 15883345494016 16206203453440 16248297488384 16502177136640 17185699266560 17771575377920 18152394850304 19152785899520 19548732915712 19854181867520 20310371860480 21068064489472 21872708157440 22341409046528 22690493562880 23103047991296 24059978973184 24435916144640 26335080611840 26403483418624 27926761308160 28434520604672 28878809989120 30074973716480 30097234984960 31766690988032 32412406906880 33004354273280 34371398533120 35543150755840 36304789700608 38305571799040 39097465831424 39708363735040 40620743720960 42136128978944 43745416314880 44682818093056 45380987125760 46206095982592 48119957946368 48871832289280 52670161223680 52806966837248 55853522616320 56869041209344 57757619978240 60149947432960 60194469969920 63533381976064 66008708546560 68742797066240 71086301511680 72609579401216 78194931662848 79416727470080 81241487441920 84272257957888 89365636186112 90761974251520 92412191965184 96239915892736 97743664578560 105340322447360 105613933674496 111707045232640 113738082418688 115515239956480 120299894865920 127066763952128 132017417093120 142172603023360 145219158802432 156389863325696 158833454940160 178731272372224 181523948503040 184824383930368 195487329157120 210680644894720 211227867348992 223414090465280 231030479912960 240599789731840 254133527904256 264034834186240 284345206046720 290438317604864 312779726651392 317666909880320 363047897006080 369648767860736 390974658314240 421361289789440 446828180930560 462060959825920 481199579463680 508267055808512 528069668372480 568690412093440 580876635209728 625559453302784 635333819760640 726095794012160 739297535721472 781949316628480 893656361861120 924121919651840 1016534111617024 1056139336744960 1161753270419456 1251118906605568 1270667639521280 1452191588024320 1478595071442944 1563898633256960 1848243839303680 2033068223234048 2323506540838912 2541335279042560 2904383176048640 3127797266513920 3696487678607360 4066136446468096 5082670558085120 5808766352097280 6255594533027840 7392975357214720 8132272892936192 10165341116170240 11617532704194560 16264545785872384 20330682232340480 40661364464680960 81322728929361920
- Sum of all divisors σ(n): 264864706437627072
- Sum of proper divisors (its aliquot sum) s(n): 183541977508265152
- 81322728929361920 is an abundant number, because the sum of its proper divisors (183541977508265152) is greater than itself. Its abundance is 102219248578903232
Bases of 81322728929361920
- Binary: 1001000001110101010010111010100100000000000000000000000002
- Hexadecimal: 0x120EA9752000000
- Base-36: M8QI1X5WIRK
Squares and roots of 81322728929361920
- 81322728929361920 squared (813227289293619202) is 6613386240518478131149098346086400
- 81322728929361920 cubed (813227289293619203) is 537818616542856110223221083686772016886881189888000
-
The
square root of 81322728929361920 is 285171402.7201218505 -
The
cube root of 81322728929361920 is 433248.7462175745
Scales and comparisons
How big is 81322728929361920?- 81,322,728,929,361,920 seconds is equal to 2,585,811,232 years, 12 weeks, 2 days, 6 hours, 45 minutes, 20 seconds.
-
To count from 1 to 81,322,728,929,361,920 would take you about seven billion, seven hundred fifty-seven million, four hundred thirty-three thousand, six hundred ninety-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 81322728929361920 cubic inches would be around 36104.1 feet tall.
Recreational maths with 81322728929361920
- 81322728929361920 backwards is 02916392982722318
- The number of decimal digits it has is: 17
- The sum of 81322728929361920's digits is 74
- More coming soon!
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The information we have on file for 81322728929361920 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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