81400134816

Names of 81400134816

• Cardinal: 81400134816 can be written as Eighty-one billion, four hundred million, one hundred thirty-four thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 8.1400134816 × 10¹⁰

Factors of 81400134816

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 402

Divisors of 81400134816

• Number of divisors d(n): 960
• 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 52 54 56 63 66 72 77 78 81 84 88 91 96 99 104 108 112 117 126 132 137 143 144 154 156 162 168 176 182 189 198 208 216 224 229 231 234 252 264 273 274 286 288 297 308 312 324 336 351 352 364 378 396 411 416 429 432 458 462 468 504 528 546 548 567 572 594 616 624 648 672 687 693 702 728 756 792 819 822 858 864 891 916 924 936 959 1001 1008 1053 1056 1092 1096 1134 1144 1188 1232 1233 1248 1287 1296 1374 1386 1404 1456 1507 1512 1584 1603 1638 1644 1716 1781 1782 1832 1848 1872 1918 2002 2016 2061 2079 2106 2184 2192 2268 2288 2376 2457 2464 2466 2519 2574 2592 2748 2772 2808 2877 2912 2977 3003 3014 3024 3168 3206 3276 3288 3432 3562 3564 3664 3696 3699 3744 3836 3861 4004 4122 4158 4212 4368 4384 4521 4536 4576 4752 4809 4914 4932 5038 5148 5343 5496 5544 5616 5754 5954 6006 6028 6048 6183 6237 6412 6552 6576 6864 7124 7128 7328 7371 7392 7398 7557 7672 7722 8008 8244 8316 8424 8631 8736 8931 9009 9042 9072 9504 9618 9828 9864 10076 10296 10549 10686 10992 11088 11097 11232 11508 11583 11908 12012 12056 12366 12467 12474 12824 13104 13152 13563 13728 14248 14256 14427 14742 14796 15114 15344 15444 16016 16029 16488 16632 16848 17262 17633 17862 18018 18084 18144 18549 19236 19591 19656 19728 20152 20592 20839 21098 21372 21984 22176 22194 22671 23016 23166 23816 24024 24112 24732 24934 24948 25648 25893 26208 26793 27027 27126 28496 28512 28854 29484 29592 30228 30688 30888 31373 31647 32032 32058 32747 32976 33264 33696 34524 35266 35724 36036 36168 37098 37401 38472 39182 39312 39456 40304 40689 41184 41678 42196 42744 43281 44388 45342 46032 46332 47632 48048 48087 48224 49464 49868 49896 51296 51786 52899 53586 54054 54252 56992 57708 58773 58968 59184 60456 61776 62517 62746 63294 64116 65494 65952 66528 68013 69048 70532 71448 72072 72336 74196 74802 76944 77679 78364 78624 80379 80608 81081 81378 83356 84392 85488 86562 88776 90684 92064 92664 94119 94941 95264 96096 96174 98241 98928 99736 99792 103572 105798 107172 108108 108504 112203 115416 117546 117936 118368 120912 122067 123552 125034 125492 126588 128232 129843 130988 136026 137137 138096 141064 142896 144144 144261 144672 148392 149604 153888 155358 156728 158697 160758 162162 162756 166712 168784 170976 173124 176319 177552 181368 185328 187551 188238 189882 192348 196482 197856 199472 199584 204039 207144 211596 214344 216216 217008 219611 224406 229229 230832 235092 235872 241137 241824 244134 250068 250984 253176 256464 259686 261976 272052 274274 276192 282128 282357 284823 285792 288288 288522 294723 296784 299208 310716 313456 317394 321516 324324 325512 333424 336609 337568 345103 346248 352638 355104 362736 370656 375102 376476 379764 384696 392964 398944 407849 408078 411411 414288 423192 428688 432432 434016 439222 448812 458458 461664 470184 476091 482274 488268 500136 501968 506352 512928 519372 523952 528957 544104 548548 562653 564256 564714 569646 577044 589446 593568 598416 621432 626912 634788 643032 648648 651024 658833 666848 673218 687687 690206 692496 705276 725472 750204 752952 759528 769392 785928 815698 816156 822822 828576 846384 847071 854469 857376 864864 878444 884169 897624 916916 940368 952182 964548 976536 1000272 1003936 1009827 1012704 1035309 1038744 1047904 1057914 1088208 1097096 1125306 1129428 1139292 1154088 1178892 1196832 1223547 1234233 1242864 1269576 1286064 1297296 1302048 1317666 1346436 1375374 1380412 1384992 1410552 1428273 1500408 1505904 1519056 1538784 1571856 1586871 1631396 1632312 1645644 1687959 1692768 1694142 1708938 1756888 1768338 1795248 1833832 1880736 1904364 1929096 1953072 1976499 2000544 2019654 2063061 2070618 2077488 2115828 2176416 2194192 2250612 2258856 2278584 2308176 2357784 2415721 2447094 2468466 2485728 2539152 2541213 2572128 2594592 2635332 2652507 2692872 2750748 2760824 2821104 2854943 2856546 3000816 3011808 3038112 3105927 3143712 3173742 3262792 3264624 3291288 3375918 3388284 3417876 3513776 3536676 3590496 3667664 3670641 3702699 3808728 3858192 3906144 3952998 4039308 4126122 4141236 4154976 4231656 4388384 4486339 4501224 4517712 4557168 4616352 4715568 4831442 4894188 4936932 5078304 5082426 5270664 5305014 5385744 5501496 5521648 5642208 5709886 5713092 5929497 6001632 6189183 6211854 6347484 6525584 6529248 6582576 6751836 6776568 6835752 7027552 7073352 7247163 7335328 7341282 7405398 7617456 7716384 7905996 8078616 8252244 8282472 8463312 8564829 8972678 9002448 9035424 9114336 9317781 9431136 9662884 9788376 9873864 10164852 10541328 10610028 10771488 11002992 11011923 11043296 11108097 11419772 11426184 11858994 12378366 12423708 12694968 13051168 13165152 13459017 13503672 13553136 13671504 14146704 14494326 14682564 14810796 15234912 15811992 16157232 16504488 16564944 16926624 17129658 17788491 17945356 18004896 18567549 18635562 19325768 19576752 19747728 20329704 21082656 21220056 21741489 22005984 22023846 22216194 22839544 22852368 23717988 24756732 24847416 25389936 25694487 26918034 27007344 27106272 27343008 27953343 28293408 28988652 29365128 29621592 31404373 31623984 32314464 33008976 33035769 33129888 34259316 35576982 35890712 37135098 37271124 38651536 39153504 39495456 40377051 40659408 42440112 43482978 44047692 44432388 45679088 45704736 47435976 49513464 49694832 50779872 51388974 53836068 54014688 55906686 57977304 58730256 59243184 62808746 63247968 65224467 66017952 66071538 68518632 71153964 71781424 74270196 74542248 77083461 77303072 80754102 81318816 84880224 86965956 88095384 88864776 91358176 94213119 94871952 99026928 99389664 102777948 107672136 111813372 115954608 117460512 118486368 121131153 125617492 130448934 132143076 137037264 142307928 143562848 148540392 149084496 154166922 161508204 173931912 176190768 177729552 188426238 189743904 195673401 198053856 205555896 215344272 223626744 231250383 231909216 242262306 251234984 260897868 264286152 274074528 282639357 284615856 297080784 298168992 308333844 323016408 347863824 352381536 355459104 363393459 376852476 391346802 411111792 430688544 447253488 462500766 484524612 502469968 521795736 528572304 565278714 569231712 594161568 616667688 646032816 695727648 726786918 753704952 782693604 822223584 847918071 894506976 925001532 969049224 1004939936 1043591472 1057144608 1130557428 1233335376 1292065632 1453573836 1507409904 1565387208 1695836142 1850003064 1938098448 2087182944 2261114856 2466670752 2543754213 2907147672 3014819808 3130774416 3391672284 3700006128 3876196896 4522229712 5087508426 5814295344 6261548832 6783344568 7400012256 9044459424 10175016852 11628590688 13566689136 20350033704 27133378272 40700067408 81400134816
• Sum of all divisors σ(n): 325186202880
• Sum of proper divisors (its aliquot sum) s(n): 243786068064
• 81400134816 is an abundant number, because the sum of its proper divisors (243786068064) is greater than itself. Its abundance is 162385933248

Bases of 81400134816

• Binary: 1001011110011110100110111110010100000₂
• Hexadecimal: 0x12F3D37CA0
• Base-36: 11E7JE00

Squares and roots of 81400134816

• 81400134816 squared (81400134816²) is 6625981948062975353856
• 81400134816 cubed (81400134816³) is 539355823860708503861963705450496
• The square root of 81400134816 is 285307.0886185621
• The cube root of 81400134816 is 4333.8616318633

Scales and comparisons

• 81,400,134,816 seconds is equal to 2,588 years, 14 weeks, 1 day, 4 hours, 33 minutes, 36 seconds.
• To count from 1 to 81,400,134,816 would take you about five thousand, one hundred seventy-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 81400134816 cubic inches would be around 361.2 feet tall.

Recreational maths with 81400134816

• 81400134816 backwards is 61843100418
• 81400134816 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81400134816's digits is 36
• More coming soon!