642938464864872

Names of 642938464864872

• Cardinal: 642938464864872 can be written as Six hundred forty-two trillion, nine hundred thirty-eight billion, four hundred sixty-four million, eight hundred sixty-four thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 6.42938464864872 × 10¹⁴

Factors of 642938464864872

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 131478

Divisors of 642938464864872

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 18 22 24 27 31 33 36 44 54 62 66 72 79 81 88 93 99 108 124 132 158 162 186 198 216 237 248 264 279 281 297 316 324 341 372 396 474 558 562 594 632 648 682 711 744 792 837 843 869 891 948 1023 1116 1124 1188 1364 1422 1674 1686 1738 1782 1896 2046 2133 2232 2248 2376 2449 2511 2529 2607 2728 2844 3069 3091 3348 3372 3476 3564 4092 4266 4898 5022 5058 5214 5688 6138 6182 6399 6696 6744 6952 7128 7347 7587 7821 8184 8532 8711 9207 9273 9796 10044 10116 10428 12276 12364 12798 14694 15174 15642 17064 17422 18414 18546 19592 20088 20232 20856 22041 22199 22761 23463 24552 24728 25596 26133 26939 27621 27819 29388 30348 31284 34844 36828 37092 44082 44398 45522 46926 51192 52266 53878 55242 55638 58776 60696 62568 66123 66597 69688 70389 73656 74184 78399 80817 83457 88164 88796 91044 93852 95821 104532 107756 110484 111276 131071 132246 133194 140778 156798 161634 166914 176328 177592 182088 187704 191642 198369 199791 209064 215512 220968 222552 235197 242451 244189 250371 262142 264492 266388 281556 287463 313596 323268 333828 383284 393213 396738 399582 470394 484902 488378 500742 524284 528984 532776 563112 574926 599373 627192 646536 667656 688169 705591 727353 732567 766568 786426 793476 799164 862389 940788 969804 976756 1001484 1048568 1149852 1179639 1198746 1376338 1411182 1441781 1454706 1465134 1572852 1586952 1598328 1724778 1798119 1881576 1939608 1953512 2002968 2064507 2182059 2197701 2299704 2359278 2397492 2587167 2752676 2822364 2883562 2909412 2930268 3145704 3449556 3538917 3596238 4063201 4129014 4325343 4364118 4395402 4718556 4794984 5174334 5505352 5644728 5767124 5818824 5860536 6193521 6593103 6899112 7077834 7192476 7569859 7761501 8126402 8258028 8650686 8728236 8790804 9437112 10348668 10354609 10616751 11534248 12189603 12387042 12976029 13186206 14155668 14384952 15139718 15523002 16252804 16516056 17301372 17456472 17581608 18580563 19779309 20697336 20709218 21233502 22709577 24379206 24774084 25952058 26372412 28311336 30279436 31046004 31063827 32505608 34602744 36568809 36830951 37161126 38928087 39558618 41418436 42467004 44695211 45419154 48758412 49548168 51904116 52744824 55741689 60558872 62092008 62127654 68128731 73137618 73661902 74322252 77856174 79117236 82836872 84934008 89390422 90838308 93191481 97516824 103808232 109706427 110492853 111483378 113900699 116784261 124255308 134085633 136257462 146275236 147323804 148644504 155712348 158234472 178780844 181676616 186382962 204386193 219412854 220985706 222966756 227801398 233568522 248510616 268171266 272514924 279574443 292550472 294647608 311424696 320992879 329119281 331478559 341702097 357561688 372765924 402256899 405140461 408772386 438825708 441971412 445933512 455602796 467137044 536342532 545029848 559148886 613158579 641985758 658238562 662957118 683404194 745531848 804513798 810280922 817544772 838723329 877651416 883942824 911205592 934274088 962978637 994435677 1025106291 1072685064 1118297772 1141759481 1206770697 1215421383 1226317158 1283971516 1316477124 1325914236 1366808388 1609027596 1620561844 1635089544 1677446658 1925957274 1988871354 2050212582 2236595544 2283518962 2413541394 2430842766 2452634316 2567943032 2632954248 2651828472 2733616776 2888935911 2909645129 2983307031 3075318873 3218055192 3241123688 3354893316 3425278443 3530921669 3620312091 3646264149 3851914548 3977742708 4100425164 4567037924 4827082788 4861685532 4905268632 5777871822 5819290258 5966614062 6150637746 6709786632 6850556886 7061843338 7240624182 7292528298 7703829096 7955485416 8200850328 8666807733 8728935387 9134075848 9225956619 9654165576 9723371064 10275835329 10592765007 10938792447 11555743644 11638580516 11933228124 12301275492 12559354291 13701113772 14123686676 14481248364 14585056596 17333615466 17457870774 18451913238 20551670658 21185530014 21877584894 23111487288 23277161032 23866456248 24602550984 25118708582 26000423199 26186806161 27402227544 28247373352 28962496728 29170113192 30827505987 31778295021 32006096419 32816377341 34667230932 34915741548 36903826476 37678062873 41103341316 42371060028 43755169788 50237417164 52000846398 52373612322 61655011974 63556590042 64012192838 65632754682 69334461864 69831483096 73807652952 75356125746 78560418483 82206682632 84742120056 87510339576 90198998999 92482517961 95334885063 96018289257 100474834328 104001692796 104747224644 113034188619 123310023948 127113180084 128024385676 131265509364 150712251492 157120836966 180397997998 184965035922 190669770126 192036578514 208003385592 209494449288 226068377238 235681255449 246620047896 254226360168 256048771352 262531018728 270596996997 286004655189 288054867771 301424502984 314241673932 339102565857 360795995996 369930071844 381339540252 384073157028 452136754476 471362510898 541193993994 572009310378 576109735542 628483347864 678205131714 721591991992 739860143688 762679080504 768146314056 811790990991 864164603313 904273508952 942725021796 992188988989 1017307697571 1082387987988 1144018620756 1152219471084 1356410263428 1623581981982 1728329206626 1885450043592 1984377977978 2034615395142 2164775975976 2288037241512 2304438942168 2435372972973 2592493809939 2712820526856 2976566966967 3247163963964 3456658413252 3968755955956 4069230790284 4870745945946 5184987619878 5953133933934 6494327927928 6913316826504 7306118918919 7937511911912 8138461580568 8929700900901 9741491891892 10369975239756 11906267867868 14612237837838 17859401801802 19482983783784 20739950479512 23812535735736 26789102702703 29224475675676 35718803603604 53578205405406 58448951351352 71437607207208 80367308108109 107156410810812 160734616216218 214312821621624 321469232432436 642938464864872
• Sum of all divisors σ(n): 2060899791667200
• Sum of proper divisors (its aliquot sum) s(n): 1417961326802328
• 642938464864872 is an abundant number, because the sum of its proper divisors (1417961326802328) is greater than itself. Its abundance is 775022861937456

Bases of 642938464864872

• Binary: 10010010001011111111000110110011111000101001101000₂
• Hexadecimal: 0x248BFC6CF8A68
• Base-36: 6BWHUPSUI0

Squares and roots of 642938464864872

• 642938464864872 squared (642938464864872²) is 413369869602798247221219576384
• 642938464864872 cubed (642938464864872³) is 265771389383815421033414508317770251642382848
• The square root of 642938464864872 is 25356231.2827610879
• The cube root of 642938464864872 is 86309.0764848015

Scales and comparisons

• 642,938,464,864,872 seconds is equal to 20,443,454 years, 23 weeks, 10 hours, 1 minute, 12 seconds.
• To count from 1 to 642,938,464,864,872 would take you about fifty-one million, one hundred eight thousand, six hundred thirty-six 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 642938464864872 cubic inches would be around 7192.4 feet tall.

Recreational maths with 642938464864872

• 642938464864872 backwards is 278468464839246
• 642938464864872 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 642938464864872's digits is 81
• More coming soon!