81638742631680
81,638,742,631,680 is an even composite number composed of seven prime numbers multiplied together.
81638742631680 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of eight hundred sixty-four divisors.
Prime factorization of 81638742631680:
28 × 32 × 5 × 13 × 53 × 73 × 140897
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 53 × 73 × 140897)See below for interesting mathematical facts about the number 81638742631680 from the Numbermatics database.
Names of 81638742631680
- Cardinal: 81638742631680 can be written as Eighty-one trillion, six hundred thirty-eight billion, seven hundred forty-two million, six hundred thirty-one thousand, six hundred eighty.
Scientific notation
- Scientific notation: 8.163874263168 × 1013
Factors of 81638742631680
Divisors of 81638742631680
- Number of divisors d(n): 864
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 53 60 64 65 72 73 78 80 90 96 104 106 117 120 128 130 144 146 156 159 160 180 192 195 208 212 219 234 240 256 260 265 288 292 312 318 320 360 365 384 390 416 424 438 468 477 480 520 530 576 584 585 624 636 640 657 689 720 730 768 780 795 832 848 876 936 949 954 960 1040 1060 1095 1152 1168 1170 1248 1272 1280 1314 1378 1440 1460 1560 1590 1664 1696 1752 1872 1898 1908 1920 2067 2080 2120 2190 2304 2336 2340 2385 2496 2544 2628 2756 2847 2880 2920 3120 3180 3285 3328 3392 3445 3504 3744 3796 3816 3840 3869 4134 4160 4240 4380 4672 4680 4745 4770 4992 5088 5256 5512 5694 5760 5840 6201 6240 6360 6570 6784 6890 7008 7488 7592 7632 7738 8268 8320 8480 8541 8760 9344 9360 9490 9540 9984 10176 10335 10512 11024 11388 11520 11607 11680 12402 12480 12720 13140 13568 13780 14016 14235 14976 15184 15264 15476 16536 16640 16960 17082 17520 18688 18720 18980 19080 19345 20352 20670 21024 22048 22776 23214 23360 24804 24960 25440 26280 27560 28032 28470 29952 30368 30528 30952 31005 33072 33920 34164 34821 35040 37440 37960 38160 38690 40704 41340 42048 42705 44096 45552 46428 46720 49608 49920 50297 50880 52560 55120 56064 56940 58035 60736 61056 61904 62010 66144 67840 68328 69642 70080 74880 75920 76320 77380 82680 84096 85410 88192 91104 92856 93440 99216 100594 101760 105120 110240 113880 116070 121472 122112 123808 124020 132288 136656 139284 140160 140897 149760 150891 151840 152640 154760 165360 168192 170820 174105 176384 182208 185712 198432 201188 203520 210240 220480 227760 232140 242944 247616 248040 251485 264576 273312 278568 280320 281794 301782 303680 305280 309520 330720 341640 348210 364416 371424 396864 402376 420480 422691 440960 452673 455520 464280 495232 496080 502970 529152 546624 557136 563588 603564 607360 610560 619040 661440 683280 696420 704485 728832 742848 754455 793728 804752 840960 845382 881920 905346 911040 928560 990464 992160 1005940 1093248 1114272 1127176 1207128 1214720 1238080 1268073 1322880 1366560 1392840 1408970 1485696 1508910 1587456 1609504 1690764 1810692 1822080 1831661 1857120 1984320 2011880 2113455 2186496 2228544 2254352 2263365 2414256 2476160 2536146 2645760 2733120 2785680 2817940 2971392 3017820 3219008 3381528 3621384 3644160 3663322 3714240 3968640 4023760 4226910 4457088 4508704 4526730 4828512 4952320 5072292 5466240 5494983 5571360 5635880 6035640 6340365 6438016 6763056 7242768 7326644 7428480 7467541 7937280 8047520 8453820 8914176 9017408 9053460 9158305 9657024 10144584 10285481 10932480 10989966 11142720 11271760 12071280 12680730 12876032 13526112 14485536 14653288 14856960 14935082 16095040 16484949 16907640 18034816 18106920 18316610 19314048 20289168 20570962 21979932 22285440 22402623 22543520 24142560 25361460 27052224 27474915 28971072 29306576 29870164 30856443 32190080 32969898 33815280 36069632 36213840 36633220 37337705 38628096 40578336 41141924 43959864 44570880 44805246 45087040 48285120 50722920 51427405 54104448 54949830 57942144 58613152 59740328 61712886 64380160 65939796 67207869 67630560 72427680 73266440 74675410 81156672 82283848 82424745 87919728 89610492 90174080 92569329 96570240 97078033 101445840 102854810 108208896 109899660 112013115 115884288 117226304 119480656 123425772 131879592 133711253 134415738 135261120 144855360 146532880 149350820 154282215 162313344 164567696 164849490 175839456 179220984 180348160 185138658 193140480 194156066 202891680 205709620 219799320 224026230 234452608 238961312 246851544 263759184 267422506 268831476 270522240 289710720 291234099 293065760 298701640 308564430 324626688 329135392 329698980 336039345 351678912 358441968 370277316 388312132 401133759 405783360 411419240 439598640 448052460 462846645 468905216 477922624 485390165 493703088 527518368 534845012 537662952 541044480 545130493 579421440 582468198 586131520 597403280 617128860 658270784 659397960 668556265 672078690 703357824 716883936 740554632 776624264 802267518 811566720 822838480 873702297 879197280 896104920 925693290 955845248 970780330 987406176 1055036736 1069690024 1075325904 1090260986 1164936396 1172263040 1194806560 1203401277 1234257720 1316541568 1318795920 1337112530 1344157380 1406715648 1433767872 1456170495 1481109264 1553248528 1604535036 1623133440 1635391479 1645676960 1747404594 1758394560 1792209840 1851386580 1911690496 1941560660 1974812352 2005668795 2110073472 2139380048 2150651808 2180521972 2329872792 2344526080 2389613120 2406802554 2468515440 2633083136 2637591840 2674225060 2688314760 2725652465 2867535744 2912340990 2962218528 3106497056 3209070072 3270782958 3291353920 3494809188 3516789120 3584419680 3702773160 3883121320 3949624704 4011337590 4220146944 4278760096 4301303616 4361043944 4368511485 4659745584 4779226240 4813605108 4906174437 4937030880 5275183680 5348450120 5376629520 5451304930 5735071488 5824681980 5924437056 6017006385 6212994112 6418140144 6541565916 6582707840 6989618376 7033578240 7086696409 7168839360 7405546320 7766242640 7899249408 8022675180 8176957395 8557520192 8602607232 8722087888 8737022970 9319491168 9558452480 9627210216 9812348874 9874061760 10550367360 10696900240 10753259040 10902609860 11649363960 11848874112 12034012770 12425988224 12836280288 13083131832 13165415680 13979236752 14173392818 14337678720 14811092640 15532485280 16045350360 16353914790 17115040384 17205214464 17444175776 17474045940 18638982336 19254420432 19624697748 19748123520 21100734720 21260089227 21393800480 21506518080 21805219720 23298727920 23697748224 24068025540 24530872185 24851976448 25672560576 26166263664 27958473504 28346785636 28675357440 29622185280 31064970560 32090700720 32707829580 34230080768 34888351552 34948091880 35433482045 37277964672 38508840864 39249395496 39496247040 42520178454 42787600960 43013036160 43610439440 46597455840 48136051080 49061744370 51345121152 52332527328 55916947008 56693571272 59244370560 62129941120 63780267681 64181401440 65415659160 69776703104 69896183760 70866964090 74555929344 77017681728 78498790992 85040356908 85575201920 86026072320 87220878880 93194911680 96272102160 98123488740 102690242304 104665054656 106300446135 111833894016 113387142544 118488741120 124259882240 127560535362 128362802880 130831318320 139553406208 139792367520 141733928180 154035363456 156997581984 170080713816 171150403840 174441757760 186389823360 192544204320 196246977480 209330109312 212600892270 223667788032 226774285088 255121070724 256725605760 261662636640 279584735040 283467856360 308070726912 313995163968 318901338405 340161427632 348883515520 372779646720 385088408640 392493954960 418660218624 425201784540 453548570176 510242141448 513451211520 523325273280 559169470080 566935712720 627990327936 637802676810 680322855264 697767031040 770176817280 784987909920 850403569080 907097140352 1020484282896 1046650546560 1118338940160 1133871425440 1255980655872 1275605353620 1360645710528 1540353634560 1569975819840 1700807138160 1814194280704 2040968565792 2093301093120 2267742850880 2551210707240 2721291421056 3139951639680 3401614276320 4081937131584 4535485701760 5102421414480 5442582842112 6279903279360 6803228552640 8163874263168 9070971403520 10204842828960 13606457105280 16327748526336 20409685657920 27212914210560 40819371315840 81638742631680
- Sum of all divisors σ(n): 314176608004896
- Sum of proper divisors (its aliquot sum) s(n): 232537865373216
- 81638742631680 is an abundant number, because the sum of its proper divisors (232537865373216) is greater than itself. Its abundance is 150899122741536
Bases of 81638742631680
- Binary: 100101001000000000000000100000100100101000000002
- Hexadecimal: 0x4A4000412500
- Base-36: SXSBJIGW0
Squares and roots of 81638742631680
- 81638742631680 squared (816387426316802) is 6664884298481685492139622400
- 81638742631680 cubed (816387426316803) is 544112773913671427282840752765777477632000
-
The
square root of 81638742631680 is 9035416.0187387055 -
The
cube root of 81638742631680 is 43380.9211006907
Scales and comparisons
How big is 81638742631680?- 81,638,742,631,680 seconds is equal to 2,595,859 years, 25 weeks, 3 days, 12 hours, 48 minutes.
-
To count from 1 to 81,638,742,631,680 would take you about six million, four hundred eighty-nine thousand, six hundred forty-eight 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 81638742631680 cubic inches would be around 3615.1 feet tall.
Recreational maths with 81638742631680
- 81638742631680 backwards is 08613624783618
- The number of decimal digits it has is: 14
- The sum of 81638742631680's digits is 63
- More coming soon!
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"Number 81638742631680 - Facts about the integer". Numbermatics.com. 2024. Web. 13 May 2024.
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The information we have on file for 81638742631680 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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