138139172855579160668

Names of 138139172855579160668

• Cardinal: 138139172855579160668 can be written as One hundred thirty-eight quintillion, one hundred thirty-nine quadrillion, one hundred seventy-two trillion, eight hundred fifty-five billion, five hundred seventy-nine million, one hundred sixty thousand, six hundred sixty-eight.

Scientific notation

• Scientific notation: 1.38139172855579160668 × 10²⁰

Factors of 138139172855579160668

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1711

Divisors of 138139172855579160668

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 13 26 52 59 118 169 236 338 676 767 1534 1637 2197 3068 3274 3481 4394 6548 6962 8788 9971 13924 19942 21281 28561 39884 42562 45253 57122 85124 90506 96583 114244 129623 181012 193166 205379 259246 276653 371293 386332 410758 518492 553306 588289 742586 821516 1106612 1176578 1255579 1485172 1685099 2353156 2511158 2669927 2679769 3370198 3596489 4826809 5022316 5339854 5359538 5698397 6740396 7192978 7647757 9653618 10679708 10719076 11396794 14385956 15295514 16322527 19307236 21906287 22793588 30591028 32645054 34709051 34836997 43812574 46754357 62748517 65290108 69418102 69673994 74079161 87625148 93508714 99420841 125497034 138836204 139347988 148158322 158106371 187017428 198841682 212192851 250994068 284781731 296316644 316212742 336205423 397683364 424385702 451217663 452880961 569563462 607806641 632425484 672410846 848771404 902435326 905761922 963029093 1139126924 1215613282 1292470933 1344821692 1804870652 1811523844 1926058186 2055382823 2431226564 2584941866 2758507063 3702162503 3852116372 4110765646 4370670499 5169883732 5517014126 5865829619 5887452493 7404325006 7901486333 8221531292 8741340998 9328275889 11034028252 11731659238 11774904986 12519378209 14808650012 15802972666 16802122129 17482681996 18656551778 23463318476 23549809972 25038756418 26719976699 31605945332 33604244258 35860591819 37313103556 50077512836 53439953398 56818716487 67208488516 71721183638 76255785047 76536882409 102719322329 106879906796 113637432974 121267586557 143442367276 152511570094 153073764818 162751916717 205438644658 218427587677 227274865948 242535173114 305023140188 306147529636 325503833434 347359697087 410877289316 436855175354 466187693647 485070346228 550368277451 651007666868 694719394174 738643314331 873710350708 932375387294 991325205611 994979471317 1100736554902 1389438788348 1477286628662 1576478625241 1864750774588 1982650411222 1989958942634 2115774917321 2201473109804 2954573257324 3152957250482 3965300822444 3979917885268 4231549834642 4515676062131 6060440017411 6305914500964 7154787606863 8463099669284 9031352124262 9602363086303 12120880034822 12887227672943 12934733127121 14309575213726 18062704248524 19204726172606 20494222128133 24241760069644 25774455345886 25869466254242 27505073925173 28619150427452 38409452345212 40988444256266 51548910691772 51738932508484 55010147850346 58703788807703 81976888512532 93012238889219 110020295700692 117407577615406 124830720121939 168151530652573 186024477778438 234815155230812 249661440243878 266424887665729 336303061305146 357565961027249 372048955556876 499322880487756 532849775331458 672606122610292 715131922054498 763149254500139 1065699550662916 1209159105559847 1430263844108996 1526298509000278 1622799361585207 2418318211119694 3052597018000556 3245598723170414 3463523539654477 4836636422239388 6491197446340828 6927047079308954 9920940308501807 13854094158617908 15719068372278011 19841880617003614 21096391700607691 31438136744556022 39683761234007228 42192783401215382 45025806015508201 62876273489112044 84385566802430764 90051612031016402 180103224062032804 204347888839614143 408695777679228286 585335478201606613 817391555358456572 1170670956403213226 2341341912806426452 2656522554914983859 5313045109829967718 10626090219659935436 34534793213894790167 69069586427789580334 138139172855579160668
• Sum of all divisors σ(n): 266566989864056884800
• Sum of proper divisors (its aliquot sum) s(n): 128427817008477724132
• 138139172855579160668 is a deficient number, because the sum of its proper divisors (128427817008477724132) is less than itself. Its deficiency is 9711355847101436536

Bases of 138139172855579160668

• Binary: 1110111110100010000111011011101000111000111000101000011000001011100₂
• Hexadecimal: 0x77D10EDD1C714305C
• Base-36: T5ILLY2WUQYQK

Squares and roots of 138139172855579160668

• 138139172855579160668 squared (138139172855579160668²) is 19082431077223578402280673961359358206224
• 138139172855579160668 cubed (138139172855579160668³) is 2636031245081263543924043513826933221876390964936287973597632
• The square root of 138139172855579160668 is 11753262221.8505429153
• The cube root of 138139172855579160668 is 5169385.8583269317

Scales and comparisons

• 138,139,172,855,579,160,668 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,139,172,855,579,160,668 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 138139172855579160668 cubic inches would be around 430782.2 feet tall.

Recreational maths with 138139172855579160668

• 138139172855579160668 backwards is 866061975558271931831
• The number of decimal digits it has is: 21
• The sum of 138139172855579160668's digits is 101
• More coming soon!