81622785081024

Names of 81622785081024

• Cardinal: 81622785081024 can be written as Eighty-one trillion, six hundred twenty-two billion, seven hundred eighty-five million, eighty-one thousand and twenty-four.

Scientific notation

• Scientific notation: 8.1622785081024 × 10¹³

Factors of 81622785081024

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 2652

Divisors of 81622785081024

• Number of divisors d(n): 630
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 19 22 24 27 32 33 36 38 44 48 54 57 64 66 72 76 81 88 96 99 108 114 121 132 144 152 162 171 176 192 198 209 216 228 242 264 288 297 304 324 342 352 363 396 418 432 456 484 513 528 576 594 608 627 648 684 704 726 792 836 864 891 912 968 1026 1056 1089 1188 1216 1254 1296 1368 1452 1539 1584 1672 1728 1782 1824 1881 1936 2052 2112 2178 2299 2376 2508 2592 2617 2736 2904 3078 3168 3267 3344 3564 3648 3762 3872 4104 4356 4598 4752 5016 5184 5234 5472 5643 5808 6156 6336 6534 6688 6897 7128 7524 7744 7851 8208 8712 9196 9504 9801 10032 10468 10944 11286 11616 12312 13068 13376 13794 14256 15048 15702 16416 16929 17424 18392 19008 19602 20064 20691 20936 22572 23232 23553 24624 26136 27588 28512 28787 30096 31404 32832 33858 34848 36784 39204 40128 41382 41872 45144 47106 49248 49723 52272 55176 57024 57574 60192 62073 62808 67716 69696 70659 73568 78408 82764 83744 86361 90288 94212 98496 99446 104544 110352 115148 120384 124146 125616 135432 141318 147136 149169 156816 165528 167488 172722 180576 186219 188424 198892 209088 211977 220704 230296 248292 251232 259083 270864 282636 298338 313632 316657 331056 345444 361152 372438 376848 397784 423954 441408 447507 460592 496584 502464 518166 541728 546953 565272 596676 627264 633314 662112 690888 744876 753696 777249 795568 847908 895014 921184 949971 993168 1036332 1083456 1093906 1130544 1193352 1266628 1324224 1342521 1381776 1489752 1507392 1554498 1591136 1640859 1695816 1790028 1842368 1899942 1986336 2072664 2187812 2261088 2331747 2386704 2533256 2685042 2763552 2849913 2979504 3108996 3182272 3281718 3391632 3580056 3799884 3972672 4027563 4145328 4375624 4522176 4663494 4773408 4922577 5066512 5370084 5527104 5699826 5959008 6016483 6217992 6563436 6783264 6848689 7160112 7599768 8055126 8290656 8549739 8751248 9326988 9546816 9845154 10133024 10740168 11399652 11918016 12032966 12435984 13126872 13566528 13697378 14320224 14767731 15199536 16110252 16581312 17099478 17502496 18049449 18653976 19690308 20266048 20546067 21480336 22799304 24065932 24871968 25649217 26253744 27394756 28640448 29535462 30399072 32220504 34198956 35004992 36098898 37307952 39380616 41092134 42960672 44303193 45598608 48131864 49743936 51298434 52507488 54148347 54789512 59070924 60798144 61638201 64441008 68397912 72197796 74615904 75335579 78761232 82184268 85921344 88606386 91197216 96263728 102596868 105014976 108296694 109579024 118141848 123276402 128882016 130125091 136795824 144395592 149231808 150671158 157522464 162445041 164368536 177212772 182394432 184914603 192527456 205193736 216593388 219158048 226006737 236283696 246552804 257764032 260250182 273591648 288791184 301342316 315044928 324890082 328737072 354425544 369829206 385054912 390375273 410387472 433186776 438316096 452013474 472567392 487335123 493105608 520500364 547183296 554743809 577582368 602684632 649780164 657474144 678020211 708851088 739658412 780750546 820774944 828691369 866373552 904026948 945134784 974670246 986211216 1041000728 1109487618 1155164736 1171125819 1205369264 1299560328 1314948288 1356040422 1417702176 1431376001 1479316824 1561501092 1641549888 1657382738 1732747104 1808053896 1949340492 1972422432 2034060633 2082001456 2218975236 2342251638 2410738528 2486074107 2599120656 2712080844 2835404352 2862752002 2958633648 3123002184 3314765476 3465494208 3513377457 3616107792 3898680984 3944844864 4068121266 4164002912 4294128003 4437950472 4684503276 4821477056 4972148214 5198241312 5424161688 5725504004 5917267296 6102181899 6246004368 6629530952 7026754914 7232215584 7458222321 7797361968 8136242532 8328005824 8588256006 8875900944 9369006552 9944296428 10396482624 10540132371 10848323376 11451008008 11834534592 12204363798 12492008736 12882384009 13259061904 14053509828 14464431168 14916444642 15594723936 15745136011 16272485064 17176512012 17751801888 18738013104 19888592856 21080264742 21696646752 22374666963 22902016016 24408727596 24984017472 25764768018 26518123808 28107019656 29832889284 31189447872 31490272022 32544970128 34353024024 35503603776 37476026208 38647152027 39777185712 42160529484 43393293504 44749333926 45804032032 47235408033 48817455192 51529536036 53036247616 56214039312 59665778568 62980544044 65089940256 67124000889 68706048048 74952052416 77294304054 79554371424 84321058968 89498667852 91608064064 94470816066 97634910384 103059072072 112428078624 115941456081 119331557136 125961088088 130179880512 134248001778 137412096096 141706224099 154588608108 159108742848 168642117936 178997335704 188941632132 195269820768 206118144144 224856157248 231882912162 238663114272 251922176176 268496003556 274824192192 283412448198 309177216216 337284235872 357994671408 377883264264 390539641536 412236288288 425118672297 463765824324 477326228544 503844352352 536992007112 566824896396 618354432432 674568471744 715989342816 755766528528 824472576576 850237344594 927531648648 1007688704704 1073984014224 1133649792792 1236708864864 1275356016891 1431978685632 1511533057056 1700474689188 1855063297296 2147968028448 2267299585584 2473417729728 2550712033782 3023066114112 3400949378376 3710126594592 4295936056896 4534599171168 5101424067564 6801898756752 7420253189184 9069198342336 10202848135128 13603797513504 20405696270256 27207595027008 40811392540512 81622785081024
• Sum of all divisors σ(n): 280055532219540
• Sum of proper divisors (its aliquot sum) s(n): 198432747138516
• 81622785081024 is an abundant number, because the sum of its proper divisors (198432747138516) is greater than itself. Its abundance is 116809962057492

Bases of 81622785081024

• Binary: 10010100011110001001001000111000011111011000000₂
• Hexadecimal: 0x4A3C491C3EC0
• Base-36: SXKZMSS00

Squares and roots of 81622785081024

• 81622785081024 squared (81622785081024²) is 6662279044383034070244888576
• 81622785081024 cubed (81622785081024³) is 543793770589486344855364390095326011981824
• The square root of 81622785081024 is 9034532.9199147867
• The cube root of 81622785081024 is 43378.0944266045

Scales and comparisons

• 81,622,785,081,024 seconds is equal to 2,595,352 years, 4 weeks, 4 days, 15 hours, 50 minutes, 24 seconds.
• To count from 1 to 81,622,785,081,024 would take you about six million, four hundred eighty-eight thousand, three hundred eighty 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 81622785081024 cubic inches would be around 3614.8 feet tall.

Recreational maths with 81622785081024

• 81622785081024 backwards is 42018058722618
• 81622785081024 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81622785081024's digits is 54
• More coming soon!