642540743729220

Names of 642540743729220

• Cardinal: 642540743729220 can be written as Six hundred forty-two trillion, five hundred forty billion, seven hundred forty-three million, seven hundred twenty-nine thousand, two hundred twenty.

Scientific notation

• Scientific notation: 6.4254074372922 × 10¹⁴

Factors of 642540743729220

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 142377

Divisors of 642540743729220

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 113 140 163 210 226 326 339 420 452 489 565 587 652 678 791 815 978 1130 1141 1174 1356 1582 1630 1695 1761 1956 2260 2282 2348 2373 2445 2935 3164 3260 3390 3423 3522 3955 4109 4564 4746 4890 5705 5870 6780 6846 7044 7910 8218 8805 9492 9780 11410 11740 11865 12327 13692 15820 16436 17115 17610 18419 20545 22820 23730 24654 34230 35220 36838 41090 47460 49308 55257 61635 66331 68460 73676 82180 92095 95681 110514 123270 128933 132662 141497 184190 191362 198993 221028 246540 257866 265324 276285 282994 287043 331655 368380 382724 386799 397986 424491 464317 478405 515732 552570 565988 574086 644665 663310 669767 707485 773598 795972 848982 928634 956810 990479 994965 1105140 1148172 1289330 1326620 1339534 1392951 1414970 1435215 1547196 1697964 1857268 1913620 1933995 1980958 1989930 2009301 2122455 2321585 2578660 2679068 2785902 2829940 2870430 2971437 3348835 3867990 3961916 3979860 4018602 4244910 4643170 4952395 5571804 5740860 5942874 6697670 6964755 7735980 8037204 8489820 9286340 9904790 10046505 10811953 11885748 13395340 13929510 14857185 15989161 19809580 20093010 21623906 23064011 27859020 29714370 31978322 32435859 40186020 43247812 46128022 47967483 54059765 59428740 63956644 64871718 69192033 75683671 79945805 83058739 92256044 95934966 108119530 111924127 115320055 129743436 138384066 151367342 159891610 161448077 162179295 166117478 191869932 216239060 223848254 227051013 230640110 239837415 249176217 276768132 302734684 319783220 322896154 324358590 332234956 335772381 345960165 378418355 415293695 447696508 454102026 461280220 479674830 484344231 498352434 559620635 581411173 645792308 648717180 671544762 691920330 756836710 807240385 830587390 908204052 959349660 968688462 996704868 1119241270 1135255065 1162822346 1245881085 1343089524 1383840660 1513673420 1614480770 1661174780 1678861905 1744233519 1937376924 2238482540 2270510130 2325644692 2421721155 2491762170 2606233243 2907055865 3228961540 3357723810 3488467038 4541020260 4843442310 4983524340 5212466486 5814111730 6715447620 6976934076 7818699729 8721167595 9385637507 9686884620 10424932972 11628223460 13031166215 13538574457 15637399458 17442335190 18243632701 18771275014 26062332430 27077148914 28156912521 31274798916 34884670380 36487265402 37542550028 39093498645 40615723371 46928187535 52124664860 54154297828 54730898103 56313825042 65699462549 67692872285 72974530804 78186997290 81231446742 91218163505 93856375070 94770021199 109461796206 112627650084 131398925098 135385744570 140784562605 156373994580 162462893484 182436327010 187712750140 189540042398 197098387647 203078616855 218923592412 262797850196 270771489140 273654490515 281569125210 284310063597 328497312745 364872654020 379080084796 394196775294 406157233710 473850105995 547308981030 563138250420 568620127194 656994625490 788393550588 812314467420 947700211990 985491938235 1094617962060 1137240254388 1313989250980 1421550317985 1529858913641 1895400423980 1970983876470 2843100635970 3059717827282 3941967752940 4589576740923 5686201271940 6119435654564 7649294568205 9179153481846 10709012395487 15298589136410 18358306963692 21418024790974 22947883704615 30597178272820 32127037186461 42836049581948 45895767409230 53545061977435 64254074372922 91791534818460 107090123954870 128508148745844 160635185932305 214180247909740 321270371864610 642540743729220
• Sum of all divisors σ(n): 2090622381797376
• Sum of proper divisors (its aliquot sum) s(n): 1448081638068156
• 642540743729220 is an abundant number, because the sum of its proper divisors (1448081638068156) is greater than itself. Its abundance is 805540894338936

Bases of 642540743729220

• Binary: 10010010000110001100101100110010001010000001000100₂
• Hexadecimal: 0x248632CC8A044
• Base-36: 6BRF54WM6C

Squares and roots of 642540743729220

• 642540743729220 squared (642540743729220²) is 412858607352099170752681808400
• 642540743729220 cubed (642540743729220³) is 265278476623027817438409795708190269521448000
• The square root of 642540743729220 is 25348387.3989889147
• The cube root of 642540743729220 is 86291.2759090433

Scales and comparisons

• 642,540,743,729,220 seconds is equal to 20,430,808 years, 7 weeks, 2 days, 12 hours, 47 minutes.
• To count from 1 to 642,540,743,729,220 would take you about fifty-one million, seventy-seven thousand and twenty 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 642540743729220 cubic inches would be around 7190.9 feet tall.

Recreational maths with 642540743729220

• 642540743729220 backwards is 022927347045246
• The number of decimal digits it has is: 15
• The sum of 642540743729220's digits is 57
• More coming soon!