138728452994471700315

Names of 138728452994471700315

• Cardinal: 138728452994471700315 can be written as One hundred thirty-eight quintillion, seven hundred twenty-eight quadrillion, four hundred fifty-two trillion, nine hundred ninety-four billion, four hundred seventy-one million, seven hundred thousand, three hundred fifteen.

Scientific notation

• Scientific notation: 1.38728452994471700315 × 10²⁰

Factors of 138728452994471700315

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 132946875

Divisors of 138728452994471700315

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 5 9 15 43 45 59 103 129 177 215 295 309 387 515 531 645 885 927 1545 1935 2537 2655 4429 4635 6077 7611 12685 13287 18231 22145 22833 30385 38055 39861 54693 66435 88799 91155 114165 199305 261311 266397 273465 443995 783933 799191 1306555 1331985 2351799 3818357 3919665 3995955 5239141 9146297 11455071 11758995 15717423 19091785 26195705 27438891 34365213 45731485 47152269 57275355 78587115 82316673 132857863 137194455 171826065 225283063 235761345 393290771 398573589 411583365 539631523 664289315 675849189 1126415315 1179872313 1195720767 1618894569 1966453855 1992867945 2027547567 2698157615 3379245945 3539616939 4856683707 5712888109 5899361565 5978603835 7838613917 8094472845 10137737835 13684359889 17138664327 17698084695 23204155489 23515841751 24283418535 28564440545 39193069585 41053079667 51415992981 68421799445 69612466467 70547525253 85693321635 116020777445 117579208755 123159239001 205265398335 208837399401 257079964905 337060398431 348062332335 352737626265 588427475227 615796195005 807377233451 1011181195293 1044186997005 1685301992155 1765282425681 2422131700353 2942137376135 3033543585879 4036886167255 5055905976465 5295847277043 7266395101059 8826412128405 11797645376537 12110658501765 15167717929395 26479236385215 34717221038393 35392936129611 36331975505295 58988226882685 104151663115179 106178808388833 173586105191965 176964680648055 312454989345537 507298751191091 520758315575895 530894041944165 696061077215683 1215157473783311 1521896253573273 1562274946727685 2088183231647049 2536493755955455 3480305386078415 3645472421349933 4565688760719819 6075787368916555 6264549694941147 7609481267866365 10440916158235245 10936417264049799 18227362106749665 22828443803599095 29930626320274369 31322748474705735 52251771372682373 54682086320248995 71694290953215349 89791878960823107 149653131601371845 156755314118047119 215082872859646047 261258856863411865 269375636882469321 358471454766076745 448959394804115535 470265942354141357 645248618578938141 783776570590235595 1075414364298230235 1346878184412346605 2351329711770706785 3082854510988260007 3226243092894690705 9248563532964780021 15414272554941300035 27745690598894340063 46242817664823900105 138728452994471700315
• Sum of all divisors σ(n): 252657445280587776000
• Sum of proper divisors (its aliquot sum) s(n): 113928992286116075685
• 138728452994471700315 is a deficient number, because the sum of its proper divisors (113928992286116075685) is less than itself. Its deficiency is 24799460708355624630

Bases of 138728452994471700315

• Binary: 1111000010100111110011110001111101111001110111101100010011101011011₂
• Hexadecimal: 0x7853E78FBCEF6275B
• Base-36: T9ZRWBLI51ZKR

Squares and roots of 138728452994471700315

• 138728452994471700315 squared (138728452994471700315²) is 19245583670239344073989687487407171099225
• 138728452994471700315 cubed (138728452994471700315³) is 2669910049547970988977481573362610021671912243470413328755875
• The square root of 138728452994471700315 is 11778304334.4308139983
• The cube root of 138728452994471700315 is 5176726.0284583787

Scales and comparisons

• 138,728,452,994,471,700,315 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,728,452,994,471,700,315 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 138728452994471700315 cubic inches would be around 431393.8 feet tall.

Recreational maths with 138728452994471700315

• 138728452994471700315 backwards is 513007174499254827831
• The number of decimal digits it has is: 21
• The sum of 138728452994471700315's digits is 90
• More coming soon!