640940457696

Names of 640940457696

• Cardinal: 640940457696 can be written as Six hundred forty billion, nine hundred forty million, four hundred fifty-seven thousand, six hundred ninety-six.

Scientific notation

• Scientific notation: 6.40940457696 × 10¹¹

Factors of 640940457696

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 90

Divisors of 640940457696

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 32 33 42 44 48 49 56 66 67 77 84 88 96 98 112 121 132 134 147 154 168 176 196 201 224 231 242 264 268 294 308 336 343 352 363 392 402 462 469 484 528 536 539 588 616 672 686 726 737 784 804 847 924 938 968 1029 1056 1072 1078 1176 1232 1372 1407 1452 1474 1568 1608 1617 1694 1848 1876 1936 2058 2144 2156 2211 2352 2401 2464 2541 2744 2814 2904 2948 3216 3234 3283 3388 3696 3752 3773 3872 4116 4312 4422 4704 4802 5082 5159 5488 5628 5808 5896 5929 6432 6468 6566 6776 7203 7392 7504 7546 8107 8232 8624 8844 9604 9849 10164 10318 10976 11256 11319 11616 11792 11858 12936 13132 13552 14406 15008 15092 15477 16214 16464 16807 17248 17688 17787 19208 19698 20328 20636 22512 22638 22981 23584 23716 24321 25872 26264 26411 27104 28812 30184 30954 32428 32928 33614 35376 35574 36113 38416 39396 40656 41272 41503 45024 45276 45962 47432 48642 50421 51744 52528 52822 56749 57624 60368 61908 64856 67228 68943 70752 71148 72226 76832 78792 79233 81312 82544 83006 90552 91924 94864 97284 100842 105056 105644 108339 113498 115248 117649 120736 123816 124509 129712 134456 137886 142296 144452 157584 158466 160867 165088 166012 170247 181104 183848 184877 189728 194568 201684 211288 216678 226996 230496 235298 247632 249018 252791 259424 268912 275772 284592 288904 290521 315168 316932 321734 332024 340494 352947 362208 367696 369754 389136 397243 403368 422576 433356 453992 470596 482601 495264 498036 505582 537824 551544 554631 569184 577808 581042 633864 643468 664048 680988 705894 735392 739508 758373 778272 794486 806736 823543 845152 866712 871563 907984 941192 965202 996072 1011164 1103088 1109262 1126069 1155616 1162084 1191729 1267728 1286936 1294139 1328096 1361976 1411788 1479016 1516746 1588972 1613472 1647086 1733424 1743126 1769537 1815968 1882384 1930404 1992144 2022328 2033647 2206176 2218524 2252138 2324168 2383458 2470629 2535456 2573872 2588278 2723952 2780701 2823576 2958032 3033492 3177944 3294172 3378207 3466848 3486252 3539074 3764768 3860808 3882417 3984288 4044656 4067294 4437048 4504276 4648336 4766916 4941258 5147744 5176556 5308611 5447904 5561402 5647152 5916064 6066984 6100941 6355888 6588344 6756414 6972504 7078148 7721616 7764834 7882483 8089312 8134588 8342103 8874096 9008552 9058973 9296672 9533832 9882516 10353112 10617222 11122804 11294304 12133968 12201882 12386759 12711776 13176688 13512828 13945008 14156296 14235529 15443232 15529668 15764966 16269176 16684206 17748192 18017104 18117946 19067664 19464907 19765032 20706224 21234444 22245608 23647449 24267936 24403764 24773518 26353376 27025656 27176919 27890016 28312592 28471058 31059336 31529932 32538352 33368412 36034208 36235892 37160277 38135328 38929814 39530064 41412448 42468888 42706587 44491216 47294898 48807528 49547036 54051312 54353838 55177381 56625184 56942116 58394721 62118672 63059864 65076704 66736824 72471784 74320554 77859628 79060128 84937776 85413174 86707313 88982432 94589796 97615056 99094072 99648703 108102624 108707676 110354762 113884232 116789442 124237344 126119728 133473648 136254349 144943568 148641108 155719256 165532143 169875552 170826348 173414626 189179592 195230112 198188144 199297406 217415352 220709524 227768464 233578884 252239456 260121939 266947296 272508698 289887136 297282216 298946109 311438512 331064286 341652696 346829252 378359184 396376288 398594812 408763047 434830704 441419048 455536928 467157768 520243878 545017396 594564432 597892218 606951191 622877024 662128572 683305392 693658504 756718368 797189624 817526094 869661408 882838096 934315536 953780443 1040487756 1090034792 1189128864 1195784436 1213902382 1324257144 1366610784 1387317008 1594379248 1635052188 1765676192 1820853573 1868631072 1907560886 2080975512 2180069584 2391568872 2427804764 2648514288 2774634016 2861341329 3188758496 3270104376 3641707146 3815121772 4161951024 4360139168 4783137744 4855609528 5297028576 5722682658 6540208752 6676463101 7283414292 7630243544 8323902048 9566275488 9711219056 11445365316 13080417504 13352926202 14566828584 15260487088 19422438112 20029389303 22890730632 26705852404 29133657168 30520974176 40058778606 45781461264 53411704808 58267314336 80117557212 91562922528 106823409616 160235114424 213646819232 320470228848 640940457696
• Sum of all divisors σ(n): 2189747750400
• Sum of proper divisors (its aliquot sum) s(n): 1548807292704
• 640940457696 is an abundant number, because the sum of its proper divisors (1548807292704) is greater than itself. Its abundance is 907866835008

Bases of 640940457696

• Binary: 1001010100111011000001110011111011100000₂
• Hexadecimal: 0x953B073EE0
• Base-36: 86FZEEAO

Squares and roots of 640940457696

• 640940457696 squared (640940457696²) is 410804670311557965628416
• 640940457696 cubed (640940457696³) is 263301333413144345408711587303489536
• The square root of 640940457696 is 800587.5702857245
• The cube root of 640940457696 is 8621.9578497935

Scales and comparisons

• 640,940,457,696 seconds is equal to 20,379 years, 48 weeks, 8 hours, 1 minute, 36 seconds.
• To count from 1 to 640,940,457,696 would take you about forty thousand, seven 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 640940457696 cubic inches would be around 718.5 feet tall.

Recreational maths with 640940457696

• 640940457696 backwards is 696754049046
• The number of decimal digits it has is: 12
• The sum of 640940457696's digits is 60
• More coming soon!