12438999882418221

Names of 12438999882418221

• Cardinal: 12438999882418221 can be written as Twelve quadrillion, four hundred thirty-eight trillion, nine hundred ninety-nine billion, eight hundred eighty-two million, four hundred eighteen thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 1.2438999882418221 × 10¹⁶

Factors of 12438999882418221

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 443

Divisors of 12438999882418221

• Number of divisors d(n): 324
• Complete list of divisors:
  1 3 7 9 21 27 63 81 107 127 189 199 243 321 381 567 597 749 889 963 1143 1393 1701 1791 2247 2667 2889 3429 4179 5373 6741 8001 8667 10287 11449 12537 13589 16119 16129 20223 21293 24003 25273 26001 30861 34347 37611 39601 40767 48357 48387 60669 63879 72009 75819 80143 95123 103041 112833 112903 118803 122301 145161 149051 176911 182007 191637 216027 227457 240429 277207 285369 309123 338499 338709 356409 366903 435483 447153 530733 574911 682371 721287 831621 856107 927369 1016127 1069227 1100709 1306449 1341459 1454023 1592199 1724733 1725803 2047113 2163861 2278351 2494863 2568321 2704211 2782107 3048381 3207681 3209671 3302127 3919347 4024377 4237307 4362069 4776597 5029327 5174199 5177409 6141339 6491583 6835053 7484589 7704963 8112633 9145143 9623043 9629013 10178161 12073131 12080621 12711921 13086207 14329791 15087981 15532227 15948457 18929477 19474749 20505159 22453767 22467697 23114889 24337899 27435429 28887039 29661149 30534483 35205289 36219393 36241863 38135763 39258621 42989373 45263943 46596681 47845371 56788431 61515477 67361301 67403091 73013697 86661117 88983447 91603449 105615867 108725589 114407289 117775863 135791829 139790043 143536113 170365293 184546431 184660921 202209273 219041091 259983351 266950341 274810347 289350577 316847601 326176767 343221867 343434797 353327589 407375487 419370129 430608339 453391849 511095879 538137989 553639293 553982763 606627819 638724529 657123273 779950053 800851023 824431041 868051731 950542803 978530301 1029665601 1030304391 1222126461 1291825017 1292626447 1360175547 1533287637 1614413967 1661948289 1819883457 1916173587 2025454039 2402553069 2404043579 2473293123 2604155193 2851628409 2935590903 3090913173 3173742943 3766965923 3875475051 3877879341 4080526641 4471071703 4599862911 4843241901 4985844867 5459650371 5748520761 6076362117 7207659207 7212130737 7812465579 8554885227 9272739519 9521228829 11300897769 11633638023 12241579923 13413215109 14529725703 14957534601 17245562283 18229086351 21636392211 23437396737 27818218557 28563686487 33902693307 34900914069 36724739769 36747523279 40239645327 43589177109 44872603803 51736686849 54687259053 57580764823 64909176633 68343524603 70312190211 83454655671 85691059461 101708079921 104702742207 110174219307 110242569837 120718935981 130767531327 155210060547 164061777159 172742294469 194727529899 205030573809 257073178383 257232662953 305124239763 314108226621 330727709511 362156807943 403065353761 478404672221 492185331477 518226883407 584182589697 615091721427 771219535149 771697988859 915372719289 992183128533 1086470423829 1209196061283 1435214016663 1554680650221 1845275164281 2315093966577 2976549385599 3627588183849 4305642049989 4664041950663 5535825492843 6945281899731 7312757132521 8929648156797 10882764551547 12916926149967 13992125851989 16607476478529 20835845699193 21938271397563 32648293654641 38750778449901 51189299927647 62507537097579 65814814192689 97944880963923 116252335349703 153567899782941 197444442578067 460703699348823 592333327734201 1382111098046469 1776999983202603 4146333294139407 12438999882418221
• Sum of all divisors σ(n): 21775637264760288
• Sum of proper divisors (its aliquot sum) s(n): 9336637382342067
• 12438999882418221 is a deficient number, because the sum of its proper divisors (9336637382342067) is less than itself. Its deficiency is 3102362500076154

Bases of 12438999882418221

• Binary: 101100001100010011010001011001010110100100100000101101₂
• Hexadecimal: 0x2C3134595A482D
• Base-36: 3EH99NOJ5T9

Squares and roots of 12438999882418221

• 12438999882418221 squared (12438999882418221²) is 154728718074800515863474752804841
• 12438999882418221 cubed (12438999882418221³) is 1924670505939165683201262724794334642621555407861
• The square root of 12438999882418221 is 111530264.4236900435
• The cube root of 12438999882418221 is 231701.3092959467

Scales and comparisons

• 12,438,999,882,418,221 seconds is equal to 395,521,719 years, 47 weeks, 1 day, 12 hours, 10 minutes, 21 seconds.
• To count from 1 to 12,438,999,882,418,221 would take you about one billion, one hundred eighty-six million, five hundred sixty-five thousand, one hundred fifty-nine 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 12438999882418221 cubic inches would be around 19308.4 feet tall.

Recreational maths with 12438999882418221

• 12438999882418221 backwards is 12281428899983421
• 12438999882418221 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 12438999882418221's digits is 81
• More coming soon!