81122666688268016

Names of 81122666688268016

• Cardinal: 81122666688268016 can be written as Eighty-one quadrillion, one hundred twenty-two trillion, six hundred sixty-six billion, six hundred eighty-eight million, two hundred sixty-eight thousand and sixteen.

Scientific notation

• Scientific notation: 8.1122666688268016 × 10¹⁶

Factors of 81122666688268016

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 427

Divisors of 81122666688268016

• Number of divisors d(n): 420
• Complete list of divisors:
  1 2 4 7 8 14 16 28 49 56 71 98 112 142 196 284 343 347 392 497 568 686 694 784 994 1136 1372 1388 1988 2401 2429 2744 2776 3479 3976 4802 4858 5041 5488 5552 6958 7952 9604 9716 10082 13916 16807 17003 19208 19432 20164 24353 24637 27832 33614 34006 35287 38416 38864 40328 48706 49274 55664 67228 68012 70574 80656 97412 98548 117649 119021 120409 134456 136024 141148 170471 172459 194824 197096 235298 238042 240818 247009 268912 272048 282296 340942 344918 357911 389648 394192 470596 476084 481636 494018 564592 681884 689836 715822 833147 842863 941192 952168 963272 988036 1193297 1207213 1363768 1379672 1431644 1666294 1685726 1729063 1749227 1882384 1904336 1926544 1976072 2386594 2414426 2505377 2727536 2759344 2863288 3332588 3371452 3458126 3498454 3952144 4773188 4828852 5010754 5726576 5832029 5900041 6665176 6742904 6916252 6996908 8353079 8450491 8549039 9546376 9657704 10021508 11664058 11800082 12103441 12244589 13330352 13485808 13832504 13993816 16706158 16900982 17098078 17537639 19092752 19315408 20043016 23328116 23600164 24206882 24489178 27665008 27987632 33412316 33801964 34196156 35075278 40086032 40824203 41300287 46656232 47200328 48413764 48978356 59153437 59843273 66824632 67603928 68392312 70150556 81648406 82600574 84724087 85712123 93312464 94400656 96827528 97956712 118306874 119686546 122763473 124195117 133649264 135207856 136784624 140301112 163296812 165201148 169448174 171424246 193655056 195913424 236613748 239373092 245526946 248390234 280602224 289102009 326593624 330402296 338896348 342848492 414074059 418902911 473227496 478746184 491053892 496780468 578204018 593068609 599984861 606981769 653187248 660804592 677792696 685696984 828148118 837805822 859344311 869365819 946454992 957492368 982107784 993560936 1156408036 1186137218 1199969722 1213963538 1355585392 1371393968 1656296236 1675611644 1718688622 1738731638 1964215568 1987121872 2023714063 2312816072 2372274436 2399939444 2427927076 2898518413 2932320377 3312592472 3351223288 3437377244 3477463276 4047428126 4199894027 4248872383 4625632144 4744548872 4799878888 4855854152 5797036826 5864640754 6015410177 6085560733 6625184944 6702446576 6874754488 6954926552 8094856252 8399788054 8497744766 9489097744 9599757776 9711708304 11594073652 11729281508 12030820354 12171121466 13749508976 13909853104 14165998441 16189712504 16799576108 16995489532 20526242639 23188147304 23458563016 24061640708 24342242932 28331996882 29399258189 29742106681 32379425008 33599152216 33990979064 41052485278 42107871239 42598925131 43095705599 46376294608 46917126032 48123281416 48684485864 56663993764 58798516378 59484213362 67198304432 67981958128 82104970556 84215742478 85197850262 86191411198 96246562832 97368971728 113327987528 117597032756 118968426724 143683698473 164209941112 168431484956 170395700524 172382822396 205794807323 208194746767 226655975056 235194065512 237936853448 287367396946 298192475917 301669939193 328419882224 336862969912 340791401048 344765644792 411589614646 416389493534 470388131024 475873706896 574734793892 596384951834 603339878386 673725939824 681582802096 689531289584 823179229292 832778987068 1005785889311 1149469587784 1192769903668 1206679756772 1457363227369 1646358458584 1665557974136 2011571778622 2087347331419 2111689574351 2298939175568 2385539807336 2413359513544 2914726454738 3292716917168 3331115948272 4023143557244 4174694662838 4223379148702 4771079614672 4826719027088 5829452909476 8046287114488 8349389325676 8446758297404 10201542591583 11658905818952 14611431319933 14781827020457 16092574228976 16698778651352 16893516594808 20403085183166 23317811637904 29222862639866 29563654040914 33397557302704 33787033189616 40806170366332 58445725279732 59127308081828 71410798141081 81612340732664 103472789143199 116891450559464 118254616163656 142821596282162 163224681465328 206945578286398 233782901118928 236509232327312 285643192564324 413891156572796 571286385128648 724309524002393 827782313145592 1142572770257296 1448619048004786 1655564626291184 2897238096009572 5070166668016751 5794476192019144 10140333336033502 11588952384038288 20280666672067004 40561333344134008 81122666688268016
• Sum of all divisors σ(n): 186527920766097456
• Sum of proper divisors (its aliquot sum) s(n): 105405254077829440
• 81122666688268016 is an abundant number, because the sum of its proper divisors (105405254077829440) is greater than itself. Its abundance is 24282587389561424

Bases of 81122666688268016

• Binary: 100100000001101001010001010110011001011111100011011110000₂
• Hexadecimal: 0x12034A2B32FC6F0
• Base-36: M6RL2LH0D0W

Squares and roots of 81122666688268016

• 81122666688268016 squared (81122666688268016²) is 6580887050615829234614173848576256
• 81122666688268016 cubed (81122666688268016³) is 533859106720247083160089629486682151257160141828096
• The square root of 81122666688268016 is 284820411.2915154397
• The cube root of 81122666688268016 is 432893.1757170515

Scales and comparisons

• 81,122,666,688,268,016 seconds is equal to 2,579,449,871 years, 41 weeks, 5 days, 10 hours, 26 minutes, 56 seconds.
• To count from 1 to 81,122,666,688,268,016 would take you about seven billion, seven hundred thirty-eight million, three hundred forty-nine thousand, six hundred fifteen 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 81122666688268016 cubic inches would be around 36074.4 feet tall.

Recreational maths with 81122666688268016

• 81122666688268016 backwards is 61086288666622118
• The number of decimal digits it has is: 17
• The sum of 81122666688268016's digits is 77
• More coming soon!