81013088520

Names of 81013088520

• Cardinal: 81013088520 can be written as Eighty-one billion, thirteen million, eighty-eight thousand, five hundred twenty.

Scientific notation

• Scientific notation: 8.101308852 × 10¹⁰

Factors of 81013088520

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 337

Divisors of 81013088520

• Number of divisors d(n): 1024
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 18 20 21 24 26 27 28 30 35 36 39 40 42 45 52 53 54 56 60 63 65 70 72 78 84 90 91 103 104 105 106 108 117 120 126 130 135 140 151 156 159 168 180 182 189 195 206 210 212 216 234 252 260 265 270 273 280 302 309 312 315 318 351 360 364 371 378 390 412 420 424 453 455 468 477 504 515 520 530 540 546 585 604 618 630 636 689 702 721 728 742 755 756 780 795 819 824 840 906 910 927 936 945 954 1030 1057 1060 1080 1092 1113 1170 1208 1236 1260 1272 1339 1359 1365 1378 1404 1431 1442 1484 1510 1512 1545 1560 1590 1638 1755 1812 1820 1854 1855 1890 1908 1963 2060 2067 2114 2120 2163 2184 2226 2265 2340 2385 2457 2472 2520 2678 2718 2730 2756 2781 2808 2862 2884 2968 3020 3090 3171 3180 3276 3339 3445 3510 3605 3624 3640 3708 3710 3780 3816 3926 4017 4077 4095 4120 4134 4228 4326 4452 4530 4635 4680 4770 4823 4914 5285 5356 5436 5459 5460 5512 5562 5565 5724 5768 5889 6040 6180 6201 6342 6360 6489 6552 6678 6695 6795 6890 7020 7155 7210 7416 7420 7560 7852 8003 8034 8154 8190 8268 8456 8652 8904 9060 9270 9373 9513 9540 9646 9815 9828 10017 10335 10570 10712 10815 10872 10918 10920 11124 11130 11448 11778 12051 12285 12360 12402 12684 12978 13356 13390 13590 13741 13780 13905 14040 14310 14420 14469 14840 15553 15704 15855 16006 16068 16308 16377 16380 16536 16695 17304 17667 18120 18540 18603 18746 19026 19080 19292 19467 19630 19656 20034 20085 20385 20670 21140 21630 21836 22248 22260 23556 24009 24102 24115 24570 24804 25368 25956 26712 26780 27180 27295 27482 27560 27810 28119 28539 28620 28840 28938 29445 31005 31106 31710 32012 32136 32445 32616 32754 32760 33390 35334 36153 37080 37206 37492 38052 38213 38584 38934 39260 40015 40068 40170 40770 41223 41340 42280 43260 43407 43672 44520 46659 46865 47112 47565 48018 48204 48230 49131 49140 49608 50085 51912 53001 53560 54360 54590 54964 55620 56021 56238 57078 57240 57876 58890 60255 62010 62212 63420 64024 64890 65508 66780 68705 70668 70967 72027 72306 72345 74412 74984 76104 76426 77765 77868 78520 80030 80136 80340 81540 81885 82446 82680 84357 86520 86814 88335 93015 93318 93730 95130 96036 96408 96460 97335 98262 98280 100170 104039 106002 108871 109180 109928 111240 112042 112476 114156 114639 115752 117780 120045 120510 123669 124020 124424 126840 129780 130221 131016 133560 137410 139977 140595 141336 141934 142695 144054 144612 144690 147393 148824 152852 155530 155736 160060 160680 163080 163770 164892 168063 168714 173628 176670 180765 186030 186636 187460 190260 191065 192072 192920 194670 196524 200340 202189 206115 208078 212004 212901 216081 217035 217742 218360 224084 224952 228312 229278 233295 235560 240090 241020 245655 247338 248040 253071 259560 260442 265005 274820 279954 280105 281190 283868 285390 288108 289224 289380 294786 305704 311060 312117 320120 326613 327540 329784 336126 337428 343917 347256 353340 354835 360135 361530 371007 372060 373272 374920 380520 382130 389340 393048 400680 404378 412230 416156 419931 421785 424008 425802 432162 434070 435484 448168 458556 466590 480180 482040 491310 494676 496769 504189 506142 520195 520884 530010 544355 549640 559908 560210 562380 567736 570780 573195 576216 578760 589572 606567 618345 622120 624234 638703 651105 653226 655080 672252 674856 687834 699885 706680 709670 720270 723060 728273 736965 742014 744120 764260 778680 808756 824309 824460 832312 839862 840315 843570 851604 864324 868140 870968 917112 933180 936351 960360 979839 982620 989352 993538 1008378 1010945 1012284 1031751 1040390 1041768 1060020 1064505 1080405 1088710 1119816 1120420 1124760 1141560 1146390 1179144 1213134 1236690 1248468 1265355 1277406 1302210 1306452 1344504 1375668 1399770 1415323 1419340 1440540 1446120 1456546 1473930 1484028 1490307 1512567 1528520 1560585 1617512 1633065 1648618 1648920 1679724 1680630 1687140 1703208 1719585 1728648 1736280 1819701 1855035 1866360 1872702 1916109 1959678 1965240 1987076 2016756 2021890 2024568 2063502 2080780 2099655 2120040 2129010 2160810 2177420 2184819 2240840 2292780 2426268 2472927 2473380 2483845 2496936 2520945 2530710 2554812 2604420 2612904 2751336 2799540 2809053 2830646 2838680 2881080 2913092 2939517 2947860 2968056 2980614 3025134 3032835 3121170 3193515 3266130 3297236 3359448 3361260 3374280 3439170 3639402 3641365 3710070 3745404 3832218 3919356 3974152 4033512 4043780 4121545 4127004 4161560 4199310 4245969 4258020 4321620 4354840 4369638 4470921 4585560 4681755 4852536 4899195 4945854 4946760 4967690 5041890 5061420 5109624 5158755 5208840 5459103 5599080 5618106 5661292 5770163 5826184 5879034 5895720 5961228 6050268 6065670 6242340 6387030 6532260 6554457 6594472 6722520 6878340 7076615 7278804 7282730 7418781 7420140 7451535 7490808 7562835 7664436 7838712 8087560 8243090 8254008 8398620 8491938 8516040 8643240 8739276 8941842 9098505 9363510 9580545 9798390 9891708 9935380 10083780 10122840 10317510 10716017 10918206 10924095 11236212 11322584 11540326 11758068 11922456 12100536 12131340 12364635 12484680 12737907 12774060 13064520 13108914 13412763 13756680 14045265 14153230 14557608 14565460 14697585 14837562 14840280 14903070 15125670 15328872 16486180 16797240 16983876 17310489 17478552 17883684 18197010 18727020 19161090 19596780 19663371 19783416 19870760 20167560 20635020 21229845 21432034 21836412 21848190 22256343 22354605 22472424 23080652 23516136 24262680 24729270 25475814 25548120 26217828 26825526 27295515 28090530 28306460 28850815 29130920 29395170 29675124 29806140 30251340 32148051 32772285 32972360 33967752 34620978 35767368 36394020 37093905 37454040 38213721 38322180 39193560 39326742 41270040 42459690 42864068 43672824 43696380 44512686 44709210 46161304 49458540 50951628 51931467 52435656 53580085 53651052 54591030 56181060 56612920 57701630 58790340 59350248 59612280 60502680 63689535 64296102 65544570 67063815 69241956 72788040 74187810 75012119 76427442 76644360 78653484 84919380 85728136 86552445 87392760 89025372 89418420 96444153 98316855 98917080 101903256 103862934 107160170 107302104 109182060 111281715 112362120 115403260 117580680 127379070 128592204 131089140 134127630 138483912 148375620 150024238 152854884 155794401 157306968 160740255 169838760 173104890 178050744 178836840 191068605 192888306 196633710 207725868 214320340 218364120 222563430 225036357 230806520 254758140 257184408 259657335 262178280 268255260 289332459 296751240 300048476 305709768 311588802 321480510 346209780 375060595 382137210 385776612 393267420 415451736 428640680 445126860 450072714 482220765 509516280 519314670 536510520 578664918 600096952 623177604 642961020 675109071 692419560 750121190 764274420 771553224 778972005 786534840 890253720 900145428 964441530 1038629340 1125181785 1157329836 1246355208 1285922040 1350218142 1446662295 1500242380 1528548840 1557944010 1800290856 1928883060 2025327213 2077258680 2250363570 2314659672 2700436284 2893324590 3000484760 3115888020 3375545355 3857766120 4050654426 4500727140 5400872568 5786649180 6231776040 6751090710 8101308852 9001454280 10126636065 11573298360 13502181420 16202617704 20253272130 27004362840 40506544260 81013088520
• Sum of all divisors σ(n): 344184422400
• Sum of proper divisors (its aliquot sum) s(n): 263171333880
• 81013088520 is an abundant number, because the sum of its proper divisors (263171333880) is greater than itself. Its abundance is 182158245360

Bases of 81013088520

• Binary: 1001011011100110000011010000100001000₂
• Hexadecimal: 0x12DCC1A108
• Base-36: 117T3N60

Squares and roots of 81013088520

• 81013088520 squared (81013088520²) is 6563120511549355790400
• 81013088520 cubed (81013088520³) is 531698662969575642996649766208000
• The square root of 81013088520 is 284627.9826721189
• The cube root of 81013088520 is 4326.9817466715

Scales and comparisons

• 81,013,088,520 seconds is equal to 2,575 years, 50 weeks, 1 day, 11 hours, 42 minutes.
• To count from 1 to 81,013,088,520 would take you about five thousand, one hundred fifty-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 81013088520 cubic inches would be around 360.6 feet tall.

Recreational maths with 81013088520

• 81013088520 backwards is 02588031018
• 81013088520 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81013088520's digits is 36
• More coming soon!