81638166636990040
81,638,166,636,990,040 is an even composite number composed of six prime numbers multiplied together.
What does the number 81638166636990040 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 1440 divisors.
81638166636990040 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one thousand, four hundred forty divisors.
Prime factorization of 81638166636990040:
23 × 5 × 72 × 114 × 192 × 1993
(2 × 2 × 2 × 5 × 7 × 7 × 11 × 11 × 11 × 11 × 19 × 19 × 199 × 199 × 199)See below for interesting mathematical facts about the number 81638166636990040 from the Numbermatics database.
Names of 81638166636990040
- Cardinal: 81638166636990040 can be written as Eighty-one quadrillion, six hundred thirty-eight trillion, one hundred sixty-six billion, six hundred thirty-six million, nine hundred ninety thousand and forty.
Scientific notation
- Scientific notation: 8.163816663699004 × 1016
Factors of 81638166636990040
Divisors of 81638166636990040
- Number of divisors d(n): 1440
-
Complete list of divisors:
1 2 4 5 7 8 10 11 14 19 20 22 28 35 38 40 44 49 55 56 70 76 77 88 95 98 110 121 133 140 152 154 190 196 199 209 220 242 245 266 280 308 361 380 385 392 398 418 440 484 490 532 539 605 616 665 722 760 770 796 836 847 931 968 980 995 1045 1064 1078 1210 1330 1331 1393 1444 1463 1540 1592 1672 1694 1805 1862 1960 1990 2090 2156 2189 2299 2420 2527 2660 2662 2695 2786 2888 2926 3080 3388 3610 3724 3781 3971 3980 4180 4235 4312 4378 4598 4655 4840 5054 5320 5324 5390 5572 5852 5929 6655 6776 6965 7220 7315 7448 7562 7942 7960 8360 8470 8756 9196 9310 9317 9751 10108 10241 10648 10780 10945 11144 11495 11704 11858 12635 13310 13930 14440 14630 14641 15124 15323 15884 16093 16940 17512 17689 18392 18620 18634 18905 19502 19855 20216 20482 21560 21890 22990 23716 24079 25270 25289 26467 26620 27797 27860 29260 29282 29645 30248 30646 31768 32186 33880 35378 37240 37268 37810 39004 39601 39710 40964 41591 43681 43780 45980 46585 47432 48158 48755 50540 50578 51205 52934 53240 55594 55720 58520 58564 59290 61292 64372 65219 70756 71839 73205 74536 75620 76615 78008 79202 79420 80465 81928 83182 87362 87560 88445 91960 93170 96316 97510 101080 101156 102410 102487 105868 107261 111188 112651 117128 118580 120395 122584 126445 128744 130438 132335 138985 141512 143678 146410 151240 153230 158404 158840 160930 166364 168553 174724 176890 177023 185269 186340 192632 194579 195020 198005 202312 204820 204974 207955 211736 214522 218405 222376 225302 237160 240790 252890 260876 264670 264869 277207 277970 278179 287356 291137 292820 305767 306460 316808 321860 326095 332728 337106 349448 353780 354046 359195 370538 372680 389158 390040 396010 409640 409948 415910 429044 435611 436810 450604 457501 480491 481580 502873 505780 512435 521752 529340 529738 536305 554414 555940 556358 563255 574712 582274 585640 611534 612920 643720 652190 674212 707560 708092 717409 718390 741076 752419 778316 790229 792020 819896 831820 842765 858088 871222 873620 885115 901208 915002 926345 960982 963160 972895 1005746 1011560 1024870 1058680 1059476 1072610 1108828 1111880 1112716 1126510 1164548 1179871 1223068 1239161 1304380 1324345 1348424 1386035 1390895 1416184 1434818 1436780 1455685 1482152 1504838 1528835 1556632 1580458 1584040 1663640 1685530 1742444 1747240 1770230 1830004 1852690 1854083 1921964 1940449 1945790 1947253 2011492 2037959 2049740 2118952 2140369 2145220 2178055 2217656 2225432 2253020 2287505 2329096 2359742 2402455 2446136 2478322 2514365 2608760 2648690 2772070 2781790 2869636 2873560 2911370 2913559 3009676 3049277 3057670 3160916 3202507 3363437 3371060 3484888 3520111 3540460 3587045 3660008 3705380 3708166 3762095 3843928 3880898 3891580 3894506 3951145 4022984 4075918 4099480 4280738 4290440 4356110 4506040 4575010 4719484 4791721 4804910 4956644 5028730 5032511 5266933 5285401 5297380 5531603 5544140 5563580 5739272 5822740 5827118 5899355 6019352 6098554 6115340 6195805 6321832 6405014 6726874 6742120 7040222 7080920 7174090 7410760 7416332 7524190 7761796 7783160 7789012 7880599 7902290 8151836 8276609 8561476 8692519 8712220 9150020 9270415 9438968 9583442 9609820 9702245 9736265 9913288 10057460 10065022 10189795 10533866 10570802 10594760 10701845 11063206 11088280 11127160 11645480 11654236 11798710 12197108 12230680 12391610 12810028 12978581 13453748 13630771 14080444 14295961 14348180 14567795 14832664 15048380 15246385 15523592 15578024 15761198 15804580 16012535 16303672 16553218 16817185 17122952 17385038 17424440 17600555 18300040 18540830 19166884 19219640 19404490 19472530 20114920 20130044 20379590 20394913 21067732 21141604 21344939 21403690 22126412 22417549 23308472 23544059 23597420 23958605 24394216 24783220 25162555 25620056 25957162 26334665 26427005 26907496 27261542 27658015 28160888 28591922 28696360 29135590 30096760 30492770 31522396 31609160 32025070 33106436 33542047 33634370 34770076 35201110 35227577 36868531 36997807 37081660 38333768 38721221 38808980 38945060 39402995 40260088 40759180 40789826 41383045 42135464 42283208 42689878 42807380 43462595 44252824 44835098 47088118 47194840 47917210 49566440 50325110 51914324 52669330 52708931 52854010 54523084 55164193 55316030 55357621 57183844 57936263 58271180 60847633 60985540 63044792 64050140 64892905 66212872 67084094 67268740 68153855 69540152 70402220 70455154 71479805 73737062 73995614 74163320 77442442 77617960 77890120 78805990 81518360 81579652 82766090 85379756 85614760 86686589 86925190 89670196 91042699 94176236 95617709 95834420 100071727 100650220 101974565 103828648 105338660 105417862 105708020 106724695 109046168 110328386 110632060 110715242 112087745 114367688 115872526 116542360 117720295 121695266 121971080 128100280 129785810 134168188 134537480 136307710 140804440 140910308 142764391 142959610 147474124 147991228 149731381 154884884 157255571 157611980 163159304 165532180 167710235 170759512 173373178 173850380 176137885 179340392 182085398 184342655 184989035 188352472 191235418 191668840 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199292468111 206151780604 209307165001 209781545380 219057010403 220323331580 227280910472 230586326740 230759699918 233620357355 242173579340 245360073805 250350869032 253644959414 257689725755 266390937274 266994694120 278799831422 280411512920 284101138090 293473506760 293694163532 294502543720 308220919160 308452664212 312938586290 322820857436 339043011076 344232444919 362349942020 367117704415 373792571768 380558481820 385565830265 392576118088 398285473460 398584936222 403526071795 412303561208 418614330002 419563090760 423803763845 438114020806 440646663160 461172653480 461519399836 467240714710 484347158680 490720147610 507289918828 513964786181 515379451510 532781874548 539792162371 557599662844 568202276180 576899249795 587388327064 616905328424 625877172580 634112398535 645641714872 665977343185 678086022152 688464889838 696999578555 724699884040 734235408830 761116963640 771131660530 796570946920 797169872444 807052143590 807658949713 837228660004 847607527690 876228041612 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4438786789745 4615193998360 4661841402295 4819254228866 5072899188280 5139647861810 5327818745480 5397921623710 5575996628440 5580189107108 5653612647991 5860600620028 6133596291284 6461271597704 6884648898380 6975236383885 7102058863592 7325750775035 7458946243672 7573113788218 7666995364105 7971698724440 8076589497130 8372286600040 8762280416120 8768868596884 8877573579490 9323682804590 9638508457732 9765330937439 10256051085049 10279295723620 10795843247420 10961085746105 11160378214216 11307225295982 11721201240056 12048135572165 12267192582568 13769297796760 13950472767770 14651501550070 15146227576436 15333990728210 15345520044547 16153178994260 16867389801031 17537737193768 17755147158980 18647365609180 18932784470545 19277016915464 19530661874878 20512102170098 20558591447240 21591686494840 21922171492210 22614450591964 24096271144330 26505898258763 27900945535540 28268063239955 29303003100140 30292455152872 30667981456420 30691040089094 32306357988520 33734779602062 35510294317960 37294731218360 37865568941090 39061323749756 41024204340196 41652125835199 43844342984420 45228901183928 48192542288660 48826654687195 51280255425245 53011796517526 55801891071080 56536126479910 58606006200280 61335962912840 61382080178188 67469559204124 75731137882180 76727600222735 78122647499512 82048408680392 83304251670398 84336949005155 87688685968840 96385084577320 97653309374390 102560510850490 106023593035052 107418640311829 113072252959820 122764160356376 132529491293815 134939118408248 151462275764360 153455200445470 166608503340796 168673898010310 185541287811341 195306618748780 205121021700980 208260629175995 212047186070104 214837280623658 226144505919640 265058982587630 291564880846393 306910400890940 333217006681592 337347796020620 371082575622682 390613237497560 410242043401960 416521258351990 429674561247316 530117965175260 537093201559145 583129761692786 613820801781880 674695592041240 742165151245364 833042516703980 859349122494632 927706439056705 1060235930350520 1074186403118290 1166259523385572 1457824404231965 1484330302490728 1666085033407960 1855412878113410 2040954165924751 2148372806236580 2332519046771144 2915648808463930 3710825756226820 4081908331849502 4296745612473160 5831297616927860 7421651512453640 8163816663699004 10204770829623755 11662595233855720 16327633327398008 20409541659247510 40819083318495020 81638166636990040
- Sum of all divisors σ(n): 249316019830260000
- Sum of proper divisors (its aliquot sum) s(n): 167677853193269960
- 81638166636990040 is an abundant number, because the sum of its proper divisors (167677853193269960) is greater than itself. Its abundance is 86039686556279920
Bases of 81638166636990040
- Binary: 1001000100000100101111010111000101000001100001110010110002
- Hexadecimal: 0x122097AE2830E58
- Base-36: MBUBC04NXP4
Squares and roots of 81638166636990040
- 81638166636990040 squared (816381666369900402) is 6664790251848953657489591059201600
- 81638166636990040 cubed (816381666369900403) is 544101257181031694733317442405656956650069552064000
-
The
square root of 81638166636990040 is 285723934.3089585137 -
The
cube root of 81638166636990040 is 433808.1907707581
Scales and comparisons
How big is 81638166636990040?- 81,638,166,636,990,040 seconds is equal to 2,595,841,175 years, 32 weeks, 4 days, 3 hours, 40 seconds.
-
To count from 1 to 81,638,166,636,990,040 would take you about seven billion, seven hundred eighty-seven million, five hundred twenty-three thousand, five hundred twenty-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 81638166636990040 cubic inches would be around 36150.7 feet tall.
Recreational maths with 81638166636990040
- 81638166636990040 backwards is 04009963666183618
- 81638166636990040 is a
Harshad number . - The number of decimal digits it has is: 17
- The sum of 81638166636990040's digits is 76
- More coming soon!
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"Number 81638166636990040 - Facts about the integer". Numbermatics.com. 2024. Web. 7 June 2024.
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Numbermatics. (2024). Number 81638166636990040 - Facts about the integer. Retrieved 7 June 2024, from https://numbermatics.com/n/81638166636990040/
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The information we have on file for 81638166636990040 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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