21818036254518

Names of 21818036254518

• Cardinal: 21818036254518 can be written as Twenty-one trillion, eight hundred eighteen billion, thirty-six million, two hundred fifty-four thousand, five hundred eighteen.

Scientific notation

• Scientific notation: 2.1818036254518 × 10¹³

Factors of 21818036254518

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 167

Divisors of 21818036254518

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 29 42 53 54 58 63 73 81 87 106 126 146 159 162 174 189 203 219 243 261 318 371 378 406 438 477 486 511 522 567 609 657 729 742 783 841 954 1022 1113 1134 1218 1314 1431 1458 1533 1537 1566 1682 1701 1827 1971 2117 2187 2226 2349 2523 2862 3066 3074 3339 3402 3654 3869 3942 4234 4293 4374 4599 4611 4698 5046 5103 5329 5481 5887 5913 6351 6561 6678 7047 7569 7738 8586 9198 9222 10017 10206 10658 10759 10962 11607 11774 11826 12702 12879 13122 13797 13833 14094 14819 15138 15309 15987 16443 17661 17739 19053 20034 21141 21518 22707 23214 25758 27083 27594 27666 29638 30051 30618 31974 32277 32886 34821 35322 35478 37303 38106 38637 41391 41499 42282 44457 44573 45414 45927 47961 49329 52983 53217 54166 57159 60102 61393 63423 64554 68121 69642 74606 77274 81249 82782 82998 88914 89146 90153 91854 95922 96831 98658 104463 105966 106434 111909 112201 114318 115911 122786 124173 124497 126846 133371 133719 136242 143883 147987 154541 158949 159651 162498 171477 180306 184179 190269 193662 204363 208926 223818 224402 231822 243747 248346 248994 266742 267438 270459 282437 287766 290493 295974 309082 312011 313389 317898 319302 335727 336603 342954 347733 368358 372519 373491 380538 400113 401157 408726 429751 431649 443961 463623 476847 478953 487494 514431 540918 552537 564874 580986 613089 624022 626778 671454 673206 695466 731241 745038 746982 785407 800226 802314 811377 847311 859502 863298 871479 887922 927246 936033 940167 953694 957906 1007181 1009809 1028862 1081787 1105074 1117557 1120473 1200339 1203471 1226178 1289253 1294947 1331883 1390869 1430541 1462482 1543293 1570814 1622754 1657611 1694622 1742958 1839267 1872066 1880334 1977059 2014362 2019618 2163574 2193723 2235114 2240946 2356221 2400678 2406942 2434131 2541933 2578506 2589894 2614437 2663766 2781738 2808099 2820501 2861082 3021543 3029427 3086586 3245361 3253829 3315222 3352671 3361419 3601017 3610413 3678534 3867759 3884841 3954118 4172607 4291623 4387446 4481689 4629879 4712442 4868262 4972833 5083866 5228874 5517801 5616198 5641002 5931177 6043086 6058854 6490722 6507658 6581169 6705342 6722838 7068663 7202034 7220826 7625799 7735518 7769682 7843311 8190673 8345214 8424297 8461503 8583246 8963378 9064629 9088281 9259758 9736083 9761487 9945666 10084257 10803051 10831239 11035602 11603277 11654523 11862354 12517821 12874869 13162338 13445067 13889637 14137326 14918499 15251598 15686622 16381346 16848594 16923006 17793531 18129258 18176562 19472166 19522974 19743507 20168514 21205989 21606102 21662478 22776803 22877397 23206554 23309046 23529933 24572019 25035642 25272891 25384509 25749738 26890134 27193887 27264843 27779274 29208249 29284461 29836998 31371823 32409153 32493717 34809831 34963569 35587062 37553463 38624607 39487014 40335201 42411978 44755497 45553606 45754794 47059866 49144038 50545782 50769018 53380593 54387774 54529686 57334711 58416498 58568922 59230521 62743646 63617967 64818306 64987434 68330409 68632191 69619662 69927138 70589799 73716057 75106926 75818673 77249214 80670402 81581661 81794529 87624747 87853383 89510994 94115469 97227459 97481151 104429493 106761186 112660389 114669422 118461042 121005603 127235934 134266491 136660818 137264382 141179598 147432114 151637346 160141779 163163322 163589058 172004133 175249494 175706766 177691563 188230938 190853901 194454918 194962302 204991227 205896573 208858986 221148171 225320778 227456019 237529517 242011206 244744983 245383587 262874241 263560149 268532982 282346407 292443453 313288479 320283558 337981167 344008266 355383126 363016809 381707802 402799473 409982454 411793146 442296342 454912038 475059034 480425337 489489966 490767174 516012399 525748482 527120298 564692814 572561703 584886906 614973681 617689719 626576958 663444513 675962334 682368057 712588551 726033618 736150761 788622723 790680447 805598946 847039221 939865437 960850674 1013943501 1032024798 1089050427 1145123406 1229947362 1235379438 1326889026 1364736114 1425177102 1441276011 1472301522 1548037197 1577245446 1581360894 1662706619 1694078442 1717685109 1844921043 1853069157 1879730874 1990333539 2027887002 2047104171 2137765653 2178100854 2365868169 2372041341 2541117663 2819596311 2882552022 3096074394 3267151281 3325413238 3435370218 3689842086 3706138314 3980667078 4094208342 4275531306 4323828033 4644111591 4731736338 4744082682 4988119857 5082235326 5153055327 5534763129 5639192622 5971000617 6413296959 6534302562 7097604507 7116124023 7623352989 8647656066 9288223182 9801453843 9976239714 10306110654 11069526258 11942001234 12826593918 12971484099 13932334773 14195209014 14232248046 14964359571 15246705978 16604289387 17913001851 19239890877 19602907686 21348372069 22870058967 25942968198 27864669546 29404361529 29928719142 33208578774 35826003702 38479781754 41797004319 42696744138 44893078713 45740117934 49812868161 53739005553 57719672631 58808723058 68610176901 83594008638 89786157426 99625736322 107478011106 115439345262 125391012957 134679236139 137220353802 149438604483 173159017893 205830530703 250782025914 269358472278 298877208966 346318035786 376173038871 404037708417 411661061406 519477053679 752346077742 808075416834 1038954107358 1212113125251 1558431161037 2424226250502 3116862322074 3636339375753 7272678751506 10909018127259 21818036254518
• Sum of all divisors σ(n): 60020188617168
• Sum of proper divisors (its aliquot sum) s(n): 38202152362650
• 21818036254518 is an abundant number, because the sum of its proper divisors (38202152362650) is greater than itself. Its abundance is 16384116108132

Bases of 21818036254518

• Binary: 100111101011111101000010011001111011100110110₂
• Hexadecimal: 0x13D7E84CF736
• Base-36: 7QF2FGLDI

Squares and roots of 21818036254518

• 21818036254518 squared (21818036254518²) is 476026706003461838075412324
• 21818036254518 cubed (21818036254518³) is 10385967929702311666344616903153457879832
• The square root of 21818036254518 is 4670978.0832838425
• The cube root of 21818036254518 is 27942.9263685713

Scales and comparisons

• 21,818,036,254,518 seconds is equal to 693,746 years, 3 weeks, 2 days, 18 hours, 15 minutes, 18 seconds.
• To count from 1 to 21,818,036,254,518 would take you about one million, seven hundred thirty-four thousand, three hundred sixty-five 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 21818036254518 cubic inches would be around 2328.6 feet tall.

Recreational maths with 21818036254518

• 21818036254518 backwards is 81545263081812
• 21818036254518 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21818036254518's digits is 54
• More coming soon!