81634646016

Names of 81634646016

• Cardinal: 81634646016 can be written as Eighty-one billion, six hundred thirty-four million, six hundred forty-six thousand and sixteen.

Scientific notation

• Scientific notation: 8.1634646016 × 10¹⁰

Factors of 81634646016

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 106

Divisors of 81634646016

• Number of divisors d(n): 1080
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 27 28 32 33 36 42 44 48 49 54 56 63 64 66 72 77 81 83 84 88 96 98 99 108 112 121 126 128 132 144 147 154 162 166 168 176 189 192 196 198 216 224 231 242 249 252 256 264 288 294 297 308 324 332 336 352 363 378 384 392 396 432 441 448 462 484 498 504 512 528 539 567 576 581 588 594 616 648 664 672 693 704 726 747 756 768 784 792 847 864 882 891 896 913 924 968 996 1008 1024 1056 1078 1089 1134 1152 1162 1176 1188 1232 1296 1323 1328 1344 1386 1408 1452 1494 1512 1536 1568 1584 1617 1694 1728 1743 1764 1782 1792 1826 1848 1936 1992 2016 2048 2079 2112 2156 2178 2241 2268 2304 2324 2352 2376 2464 2541 2592 2646 2656 2688 2739 2772 2816 2904 2988 3024 3072 3136 3168 3234 3267 3388 3456 3486 3528 3564 3584 3652 3696 3872 3969 3984 4032 4067 4158 4224 4312 4356 4482 4536 4608 4648 4704 4752 4851 4928 5082 5184 5229 5292 5312 5376 5478 5544 5632 5808 5929 5976 6048 6144 6237 6272 6336 6391 6468 6534 6723 6776 6912 6972 7056 7128 7168 7304 7392 7623 7744 7938 7968 8064 8134 8217 8316 8448 8624 8712 8964 9072 9216 9296 9408 9504 9702 9801 9856 10043 10164 10368 10458 10584 10624 10752 10956 11088 11264 11616 11858 11952 12096 12201 12474 12544 12672 12782 12936 13068 13446 13552 13824 13944 14112 14256 14336 14553 14608 14784 15246 15488 15687 15876 15936 16128 16268 16434 16632 16896 17248 17424 17787 17928 18144 18432 18592 18816 19008 19173 19404 19602 19712 20086 20328 20736 20916 21168 21248 21504 21912 22176 22528 22869 23232 23716 23904 24192 24402 24651 24948 25088 25344 25564 25872 26136 26892 27104 27648 27888 28224 28512 29106 29216 29568 30129 30492 30976 31374 31752 31872 32256 32536 32868 33264 33792 34496 34848 35574 35856 36288 36603 37184 37632 38016 38346 38808 39204 39424 40172 40656 41472 41832 42336 42496 43008 43659 43824 44352 44737 45738 46464 47061 47432 47808 48384 48804 49302 49896 50176 50688 51128 51744 52272 53361 53784 54208 55296 55776 56448 57024 57519 58212 58432 59136 60258 60984 61952 62748 63504 63744 64512 65072 65736 66528 67584 68607 68992 69696 70301 71148 71712 72576 73206 73953 74368 75264 76032 76692 77616 78408 78848 80344 81312 82944 83664 84672 84992 87318 87648 88704 89474 90387 91476 92928 94122 94864 95616 96768 97608 98604 99792 100352 101376 102256 103488 104544 106722 107568 108416 109809 111552 112896 114048 115038 116424 116864 118272 120516 121968 123904 125496 127008 127488 129024 130144 131472 133056 134211 137214 137984 139392 140602 142296 143424 145152 146412 147906 148736 150528 152064 153384 155232 156816 157696 160083 160688 162624 165888 167328 169344 169984 172557 174636 175296 177408 178948 180774 182952 185856 188244 189728 191232 193536 195216 197208 199584 202752 204512 206976 209088 210903 213444 215136 216832 219618 223104 225792 228096 230076 232848 233728 236544 241032 243936 247808 250992 254016 254976 260288 262944 266112 268422 271161 274428 275968 278784 281204 284592 286848 290304 292824 295812 297472 301056 304128 306768 310464 313632 320166 321376 325248 329427 334656 338688 345114 349272 350592 354816 357896 361548 365904 371712 376488 379456 382464 387072 390432 394416 399168 402633 409024 413952 418176 421806 426888 430272 433664 439236 446208 451584 456192 460152 465696 467456 473088 480249 482064 487872 492107 501984 508032 509952 517671 520576 525888 532224 536844 542322 548856 551936 557568 562408 569184 573696 580608 585648 591624 594944 608256 613536 620928 627264 632709 640332 642752 650496 658854 669312 677376 690228 698544 701184 709632 715792 723096 731808 743424 752976 758912 764928 780864 788832 798336 805266 813483 818048 827904 836352 843612 853776 860544 867328 878472 892416 903168 912384 920304 931392 934912 960498 964128 975744 984214 1003968 1016064 1035342 1041152 1051776 1064448 1073688 1084644 1097712 1103872 1115136 1124816 1138368 1147392 1161216 1171296 1183248 1189888 1207899 1227072 1241856 1254528 1265418 1280664 1285504 1300992 1317708 1338624 1354752 1380456 1397088 1402368 1419264 1431584 1446192 1463616 1476321 1505952 1517824 1529856 1561728 1577664 1596672 1610532 1626966 1636096 1655808 1672704 1687224 1707552 1721088 1734656 1756944 1784832 1824768 1840608 1862784 1869824 1898127 1920996 1928256 1951488 1968428 2007936 2032128 2070684 2082304 2103552 2128896 2147376 2169288 2195424 2230272 2249632 2276736 2294784 2342592 2366496 2415798 2454144 2483712 2509056 2530836 2561328 2571008 2601984 2635416 2677248 2709504 2760912 2794176 2804736 2863168 2892384 2927232 2952642 3011904 3035648 3123456 3155328 3193344 3221064 3253932 3272192 3311616 3345408 3374448 3415104 3442176 3513888 3569664 3623697 3681216 3725568 3796254 3841992 3856512 3902976 3936856 4015872 4064256 4141368 4164608 4207104 4257792 4294752 4338576 4390848 4428963 4499264 4553472 4589568 4685184 4732992 4831596 4908288 4967424 5018112 5061672 5122656 5142016 5203968 5270832 5354496 5521824 5588352 5609472 5694381 5726336 5784768 5854464 5905284 6023808 6071296 6246912 6310656 6386688 6442128 6507864 6544384 6690816 6748896 6830208 6884352 7027776 7247394 7362432 7451136 7592508 7683984 7713024 7805952 7873712 8031744 8128512 8282736 8329216 8414208 8589504 8677152 8781696 8857926 8998528 9106944 9370368 9465984 9663192 9816576 9934848 10036224 10123344 10245312 10284032 10541664 10708992 11043648 11176704 11388762 11452672 11569536 11708928 11810568 12047616 12142592 12493824 12621312 12773376 12884256 13015728 13088768 13286889 13497792 13660416 13768704 14055552 14494788 14724864 14902272 15185016 15367968 15426048 15611904 15747424 16063488 16565472 16828416 17179008 17354304 17563392 17715852 17997056 18213888 18740736 18931968 19326384 19633152 20072448 20246688 20490624 20568064 21083328 22087296 22353408 22777524 22905344 23139072 23417856 23621136 24095232 24987648 25242624 25768512 26031456 26573778 26995584 27320832 28111104 28989576 29449728 29804544 30370032 30735936 30852096 31494848 32126976 33130944 34358016 34708608 35126784 35431704 35994112 36427776 37481472 37863936 38652768 39266304 39860667 40493376 40981248 42166656 44174592 44706816 45555048 45810688 46278144 46835712 47242272 48190464 50485248 51537024 52062912 53147556 53991168 54641664 56222208 57979152 58899456 60740064 61471872 61704192 62989696 66261888 68716032 69417216 70253568 70863408 71988224 74962944 75727872 77305536 79721334 80986752 81962496 84333312 88349184 89413632 91110096 91621376 92556288 94484544 96380928 103074048 104125824 106295112 107982336 109283328 112444416 115958304 117798912 121480128 122943744 125979392 132523776 137432064 138834432 140507136 141726816 143976448 151455744 154611072 159442668 161973504 163924992 168666624 176698368 182220192 185112576 188969088 206148096 208251648 212590224 215964672 224888832 231916608 242960256 245887488 251958784 265047552 274864128 277668864 283453632 309222144 318885336 323947008 327849984 337333248 353396736 364440384 377938176 412296192 416503296 425180448 431929344 463833216 485920512 491774976 503917568 530095104 555337728 566907264 618444288 637770672 647894016 674666496 728880768 755876352 824592384 833006592 850360896 927666432 971841024 983549952 1007835136 1060190208 1133814528 1236888576 1275541344 1295788032 1457761536 1511752704 1666013184 1700721792 1855332864 1943682048 2267629056 2473777152 2551082688 2915523072 3023505408 3401443584 3710665728 3887364096 4535258112 5102165376 5831046144 6802887168 7421331456 9070516224 10204330752 11662092288 13605774336 20408661504 27211548672 40817323008 81634646016
• Sum of all divisors σ(n): 315533197980
• Sum of proper divisors (its aliquot sum) s(n): 233898551964
• 81634646016 is an abundant number, because the sum of its proper divisors (233898551964) is greater than itself. Its abundance is 152263905948

Bases of 81634646016

• Binary: 1001100000001110011011101100000000000₂
• Hexadecimal: 0x1301CDD800
• Base-36: 11I35S00

Squares and roots of 81634646016

• 81634646016 squared (81634646016²) is 6664215430157624672256
• 81634646016 cubed (81634646016³) is 544030867615282861203006576132096
• The square root of 81634646016 is 285717.7733638565
• The cube root of 81634646016 is 4338.0195473255

Scales and comparisons

• 81,634,646,016 seconds is equal to 2,595 years, 37 weeks, 6 days, 10 hours, 33 minutes, 36 seconds.
• To count from 1 to 81,634,646,016 would take you about five thousand, one hundred ninety-one 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 81634646016 cubic inches would be around 361.5 feet tall.

Recreational maths with 81634646016

• 81634646016 backwards is 61064643618
• The number of decimal digits it has is: 11
• The sum of 81634646016's digits is 45
• More coming soon!