81027378432

Names of 81027378432

• Cardinal: 81027378432 can be written as Eighty-one billion, twenty-seven million, three hundred seventy-eight thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 8.1027378432 × 10¹⁰

Factors of 81027378432

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 275

Divisors of 81027378432

• Number of divisors d(n): 1152
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 13 14 16 18 21 22 24 26 27 28 32 33 36 39 42 44 48 49 52 54 56 63 64 66 72 77 78 84 88 91 96 98 99 104 108 112 117 126 128 132 143 144 147 154 156 168 176 182 189 192 196 198 208 216 224 231 234 239 252 256 264 273 286 288 294 297 308 312 336 343 351 352 364 378 384 392 396 416 429 432 441 448 462 468 478 504 528 539 546 572 576 588 594 616 624 637 672 686 693 702 704 717 728 756 768 784 792 819 832 858 864 882 896 924 936 956 1001 1008 1029 1056 1078 1092 1144 1152 1176 1188 1232 1248 1274 1287 1323 1344 1372 1386 1404 1408 1434 1456 1512 1568 1584 1617 1638 1664 1673 1716 1728 1764 1792 1848 1872 1911 1912 2002 2016 2058 2079 2112 2151 2156 2184 2288 2304 2352 2376 2457 2464 2496 2548 2574 2629 2646 2688 2744 2772 2808 2816 2868 2912 3003 3024 3087 3107 3136 3168 3234 3276 3328 3346 3432 3456 3528 3696 3744 3773 3822 3824 3861 4004 4032 4116 4158 4224 4302 4312 4368 4459 4576 4704 4752 4851 4914 4928 4992 5019 5096 5148 5258 5292 5376 5488 5544 5616 5733 5736 5824 6006 6048 6174 6214 6272 6336 6453 6468 6552 6692 6864 6912 7007 7056 7392 7488 7546 7644 7648 7722 7887 8008 8064 8232 8316 8448 8604 8624 8736 8918 9009 9152 9261 9321 9408 9504 9702 9828 9856 9984 10038 10192 10296 10516 10584 10976 11088 11232 11319 11466 11472 11648 11711 12012 12096 12348 12428 12544 12672 12906 12936 13104 13377 13384 13728 14014 14112 14553 14784 14976 15057 15092 15288 15296 15444 15774 16016 16128 16464 16632 17199 17208 17248 17472 17836 18018 18304 18403 18522 18642 18816 19008 19404 19656 19712 20076 20384 20592 21021 21032 21168 21749 21952 22176 22464 22638 22932 22944 23296 23422 23661 24024 24192 24696 24856 25344 25812 25872 26208 26754 26768 27027 27456 27963 28028 28224 29106 29568 29952 30114 30184 30576 30592 30888 31548 32032 32928 33264 33957 34177 34398 34416 34496 34944 35133 35672 36036 36608 36806 37044 37284 37632 38016 38808 39312 40131 40152 40768 41184 42042 42064 42336 43498 43904 44352 44928 45171 45276 45864 45888 46844 47322 48048 48384 49049 49392 49712 51624 51744 52416 53508 53536 54054 54912 55209 55926 56056 56448 58212 59136 60228 60368 61152 61184 61776 63063 63096 64064 65247 65856 66528 67914 68354 68796 68832 68992 69888 70266 70983 71344 72072 73612 74088 74568 76032 77616 78624 80262 80304 81536 81977 82368 83889 84084 84128 84672 86996 87808 88704 89856 90342 90552 91728 91776 93688 94644 96096 98098 98784 99424 101871 102531 103248 103488 104832 105399 107016 107072 108108 109824 110418 111852 112112 112896 116424 120393 120456 120736 122304 123552 126126 126192 128128 128821 130494 131712 133056 135828 136708 137592 137664 137984 140532 141966 142688 144144 147147 147224 148176 149136 152243 155232 157248 160524 160608 163072 163954 164736 165627 167778 168168 168256 169344 173992 177408 180684 181104 183456 183552 187376 189189 189288 192192 195741 196196 197568 198848 203742 205062 206496 206976 209664 210798 214032 214144 216216 220836 223704 224224 232848 239239 240786 240912 241472 244608 245931 247104 252252 252384 256256 257642 260988 263424 266112 271656 273416 275184 275328 281064 283932 285376 288288 294294 294448 296352 298272 304486 307593 310464 314496 316197 321048 321216 327908 329472 331254 335556 336336 336512 338688 347984 361368 362208 366912 374752 378378 378576 384384 386463 391482 392392 395136 397696 407484 410124 412992 413952 421596 428064 428288 432432 441441 441672 447408 448448 456729 465696 478478 481572 481824 482944 489216 491862 494208 496881 504504 504768 515284 521976 532224 543312 546832 550368 550656 562128 567864 570752 576576 587223 588588 588896 592704 596544 608972 615186 620928 628992 632394 642096 642432 655816 662508 671112 672672 673024 695968 717717 722736 724416 733824 737793 749504 756756 757152 768768 772926 782964 784784 790272 795392 814968 820248 825984 843192 856128 864864 882882 883344 894816 896896 901747 913458 922779 931392 956956 963144 963648 965888 983724 988416 993762 1009008 1009536 1030568 1043952 1065701 1086624 1093664 1100736 1124256 1135728 1141504 1153152 1159389 1174446 1177176 1177792 1185408 1193088 1217944 1230372 1241856 1264788 1284192 1284864 1311632 1324323 1325016 1342224 1345344 1370187 1391936 1435434 1445472 1448832 1467648 1475586 1499008 1513512 1514304 1545852 1565928 1569568 1629936 1640496 1651968 1674673 1686384 1712256 1729728 1765764 1766688 1789632 1793792 1803494 1826916 1845558 1862784 1913912 1926288 1927296 1967448 1987524 2018016 2019072 2061136 2087904 2131402 2153151 2173248 2187328 2201472 2213379 2248512 2271456 2306304 2318778 2348892 2354352 2355584 2370816 2386176 2435888 2460744 2529576 2568384 2623264 2648646 2650032 2684448 2690688 2705241 2740374 2783872 2870868 2890944 2897664 2951172 2998016 3027024 3028608 3091704 3131856 3139136 3197103 3259872 3280992 3349346 3372768 3424512 3459456 3478167 3531528 3533376 3579264 3606988 3653832 3691116 3725568 3827824 3852576 3854592 3934896 3975048 4036032 4110561 4122272 4175808 4262804 4306302 4346496 4374656 4402944 4426758 4497024 4542912 4637556 4697784 4708704 4711168 4871776 4921488 5024019 5059152 5136768 5246528 5297292 5300064 5368896 5381376 5410482 5480748 5567744 5741736 5781888 5902344 6054048 6057216 6183408 6263712 6278272 6394206 6459453 6519744 6561984 6698692 6745536 6918912 6956334 7063056 7066752 7158528 7213976 7307664 7382232 7655648 7705152 7869792 7950096 8072064 8115723 8221122 8244544 8351616 8525608 8612604 8692992 8749312 8853516 8994048 9085824 9275112 9395568 9417408 9591309 9743552 9842976 10048038 10118304 10273536 10493056 10594584 10600128 10737792 10820964 10961496 11483472 11563776 11722711 11804688 12108096 12366816 12527424 12556544 12788412 12918906 13039488 13123968 13397384 13491072 13912668 14126112 14133504 14427952 14615328 14764464 15072057 15311296 15410304 15739584 15900192 16144128 16231446 16442244 16489088 16703232 17051216 17225208 17707032 18171648 18550224 18791136 18834816 19182618 19487104 19685952 20096076 20236608 20986112 21189168 21200256 21475584 21641928 21922992 22966944 23445422 23609376 24216192 24347169 24733632 25054848 25576824 25837812 26078976 26247936 26794768 26982144 27825336 28252224 28773927 28855904 29230656 29528928 30144114 30622592 30820608 31479168 31800384 32462892 32884488 32978176 34102432 34450416 35168133 35414064 37100448 37582272 37669632 38365236 38974208 39371904 40192152 40473216 42378336 42400512 43283856 43845984 45216171 45933888 46890844 47218752 48432384 48694338 49467264 50109696 51153648 51675624 53589536 55650672 56504448 57547854 57711808 58461312 59057856 60288228 61245184 62958336 63600768 64925784 65768976 68204864 68900832 70336266 70828128 74200896 75164544 76730472 78743808 80384304 80946432 84756672 86567712 87691968 90432342 91867776 93781688 94437504 97388676 98934528 102307296 103351248 105504399 107179072 111301344 113008896 115095708 115423616 116922624 118115712 120576456 127201536 129851568 131537952 136409728 137801664 140672532 141656256 148401792 150329088 153460944 160768608 169513344 173135424 175383936 180864684 183735552 187563376 188875008 194777352 204614592 206702496 211008798 214358144 222602688 230191416 230847232 236231424 241152912 259703136 263075904 272819456 275603328 281345064 283312512 296803584 306921888 316513197 321537216 339026688 346270848 350767872 361729368 375126752 389554704 409229184 413404992 422017596 428716288 445205376 460382832 482305824 519406272 526151808 551206656 562690128 566625024 613843776 633026394 643074432 692541696 723458736 750253504 779109408 818458368 826809984 844035192 890410752 920765664 964611648 1038812544 1052303616 1125380256 1227687552 1266052788 1286148864 1446917472 1500507008 1558218816 1653619968 1688070384 1841531328 1929223296 2077625088 2250760512 2455375104 2532105576 2893834944 3001014016 3116437632 3376140768 3683062656 3858446592 4501521024 5064211152 5787669888 6232875264 6752281536 7366125312 9003042048 10128422304 11575339776 13504563072 20256844608 27009126144 40513689216 81027378432
• Sum of all divisors σ(n): 329656320000
• Sum of proper divisors (its aliquot sum) s(n): 248628941568
• 81027378432 is an abundant number, because the sum of its proper divisors (248628941568) is greater than itself. Its abundance is 167601563136

Bases of 81027378432

• Binary: 1001011011101100110111010110100000000₂
• Hexadecimal: 0x12DD9BAD00
• Base-36: 1181LXC0

Squares and roots of 81027378432

• 81027378432 squared (81027378432²) is 6565436055562538778624
• 81027378432 cubed (81027378432³) is 531980071845163208258241920237568
• The square root of 81027378432 is 284653.0843535689
• The cube root of 81027378432 is 4327.2361440547

Scales and comparisons

• 81,027,378,432 seconds is equal to 2,576 years, 21 weeks, 5 days, 21 hours, 7 minutes, 12 seconds.
• To count from 1 to 81,027,378,432 would take you about five thousand, one hundred fifty-two 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 81027378432 cubic inches would be around 360.6 feet tall.

Recreational maths with 81027378432

• 81027378432 backwards is 23487372018
• The number of decimal digits it has is: 11
• The sum of 81027378432's digits is 45
• More coming soon!