640344672968

Names of 640344672968

• Cardinal: 640344672968 can be written as Six hundred forty billion, three hundred forty-four million, six hundred seventy-two thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 6.40344672968 × 10¹¹

Factors of 640344672968

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 126

Divisors of 640344672968

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 4 7 8 11 13 14 17 22 26 28 29 34 44 47 49 52 56 58 68 77 88 91 94 98 104 116 119 136 143 154 182 187 188 196 203 221 232 238 286 289 308 319 329 364 374 376 377 392 406 442 476 493 517 539 572 578 611 616 637 638 658 728 748 754 799 812 833 841 884 952 986 1001 1034 1078 1144 1156 1222 1274 1276 1309 1316 1363 1421 1496 1508 1547 1598 1624 1666 1682 1768 1972 2002 2023 2068 2156 2233 2303 2312 2431 2444 2548 2552 2618 2632 2639 2726 2842 3016 3094 3179 3196 3332 3364 3451 3619 3757 3944 4004 4046 4136 4147 4277 4312 4466 4606 4862 4888 5096 5236 5278 5423 5452 5593 5684 5887 6188 6358 6392 6409 6664 6721 6728 6902 7007 7238 7514 8008 8092 8294 8381 8554 8789 8932 9163 9212 9251 9541 9724 10387 10472 10556 10829 10846 10904 10933 11186 11368 11774 12376 12716 12818 13442 13583 13804 14014 14161 14297 14476 14993 15028 15631 16184 16588 16762 17017 17108 17578 17719 17864 18326 18424 18473 18502 19082 19448 20774 21112 21658 21692 21866 22253 22372 23171 23548 24157 25333 25432 25636 26299 26884 27166 27608 28028 28322 28594 28952 29029 29939 29986 30056 31262 33176 33524 34034 34216 35156 35438 36652 36946 37004 37961 38164 39151 39527 41209 41327 41548 43316 43384 43732 44506 44744 44863 46342 47047 47096 48314 50666 51272 52598 53768 54332 56056 56644 57188 58058 58667 59878 59972 61523 62524 64757 66787 67048 68068 70312 70499 70876 72709 73304 73892 74008 75922 76328 76531 78302 79054 82418 82654 83096 86632 87464 89012 89726 92191 92684 94094 95081 96628 100079 101332 104951 105196 108664 108953 113288 114257 114376 116116 117334 119119 119756 119944 120263 123046 124033 125048 129514 133574 136136 140998 141752 145418 147784 149413 151844 153062 155771 156604 157267 158108 162197 164836 165308 176579 178024 179452 184093 184382 185368 185861 188188 190162 193256 194909 200158 202664 203203 209902 210392 217906 228514 232232 234668 238238 239512 240526 243049 246092 248066 254881 259028 265727 267148 276689 281996 289289 290836 298826 301223 303688 306124 311542 313208 314041 314534 316216 324394 329329 329672 330616 353158 358904 368186 368764 371722 376376 380324 389818 393907 400316 406406 410669 419804 430661 434797 435812 453299 457028 469336 476476 481052 486098 492184 493493 496132 508963 509762 513851 518056 531454 534296 535717 553378 563992 578578 581672 597652 602446 612248 623084 628082 629068 645337 648788 658658 665567 671959 700553 706316 734657 736372 737528 743444 760648 762671 779636 787814 799799 800632 812812 821338 839608 841841 861322 868231 869594 871624 906598 914056 952952 962104 972196 986986 992264 1017926 1019524 1027702 1045891 1062908 1071434 1100869 1106756 1135379 1157156 1195304 1198483 1204892 1236053 1246168 1256164 1258136 1290674 1297576 1301027 1317316 1331134 1343918 1364363 1401106 1412632 1469314 1472744 1486888 1525342 1559272 1575628 1599598 1625624 1642676 1683682 1701343 1722644 1736462 1739188 1784167 1813196 1936823 1942369 1944392 1973972 2025023 2035852 2039048 2044471 2055404 2091782 2108561 2125816 2142868 2201738 2213512 2270758 2314312 2396966 2409784 2472106 2512328 2581348 2602054 2634632 2662268 2673539 2687836 2728726 2757349 2802212 2938628 3043579 3050684 3151256 3159637 3199196 3285352 3313453 3367364 3402686 3445288 3454451 3472924 3478376 3568334 3596957 3626392 3873646 3884738 3947944 4050046 4071704 4088942 4110808 4183564 4217122 4285736 4332977 4403476 4517359 4541516 4703713 4793932 4944212 5120791 5162696 5204108 5324536 5338697 5347078 5375672 5457452 5514698 5598593 5604424 5652361 5877256 5892887 6087158 6101368 6319274 6398392 6626906 6734728 6805372 6908902 6945848 7136668 7193914 7321237 7391549 7706083 7747292 7769476 8100092 8177884 8367128 8389381 8434244 8652371 8665954 8735467 8806952 9034718 9083032 9107189 9407426 9550541 9587864 9888424 10241582 10408216 10677394 10694156 10914904 11029396 11197186 11304722 11423303 11785774 11909401 12174316 12489169 12638548 13253812 13596583 13610744 13817804 14273336 14311297 14387828 14642474 14759927 14783098 15412166 15494584 15538952 16200184 16355768 16778762 16868488 17304742 17331908 17470934 18069436 18214378 18714773 18814852 19101082 19301443 20483164 21305053 21354788 21388312 22058792 22117459 22394372 22609444 22846606 23194171 23571548 23818802 24348632 24978338 25178699 25277096 26507624 27193166 27635608 28622594 28775656 29284948 29519854 29566196 30330839 30824332 32925991 33557524 34609484 34663816 34756007 34941868 35845537 36138872 36428756 37429546 37629704 38202164 38602886 39566527 40966328 42610106 42709576 44234918 44788744 45218888 45693212 46388342 47143096 47637604 49956676 50357398 51740843 54386332 56328701 57245188 58569896 58725667 59039708 59132392 60661678 61148269 61648664 65851982 67115048 69218968 69512014 69883736 71691074 72857512 74859092 76404328 77205772 79133054 79963121 85220212 88469836 91386424 92776684 95176081 95275208 96090137 99913352 100179079 100714796 103481686 108772664 112657402 114490376 117451334 118079416 121323356 122296538 125656333 131003411 131703964 139024028 143382148 148502939 149718184 154411544 154822213 158266108 159926242 162359197 170440424 176939672 185553368 190352162 192180274 200358158 201429592 206963372 212315873 225314804 234902668 242646712 243292049 244593076 250918759 251312666 262006822 263407928 276965689 278048056 286764296 297005878 309644426 316532216 319852484 324718394 362185901 380704324 384360548 394300907 400716316 413926744 424631746 428037883 450629608 469805336 486584098 489186152 501837518 502625332 524013644 553931378 559741847 594011756 619288852 639704968 649436788 672630959 724371802 761408648 768721096 788601814 801432632 849263492 856075766 879594331 973168196 1003675036 1005250664 1039520573 1048027288 1107862756 1119483694 1188023512 1238577704 1298873576 1345261918 1448743604 1577203628 1633532329 1698526984 1703044343 1712151532 1759188662 1946336392 2007350072 2079041146 2215725512 2238967388 2690523836 2760106349 2897487208 3154407256 3267064658 3406088686 3424303064 3518377324 4158082292 4477934776 4708416713 5381047672 5520212698 6157160317 6534129316 6812177372 7036754648 7276644011 8316164584 9416833426 11040425396 11434726303 12314320634 13068258632 13624354744 14553288022 18833666852 22080850792 22869452606 24628641268 29106576044 37667333704 45738905212 49257282536 58213152088 80043084121 91477810424 160086168242 320172336484 640344672968
• Sum of all divisors σ(n): 1843627443840
• Sum of proper divisors (its aliquot sum) s(n): 1203282770872
• 640344672968 is an abundant number, because the sum of its proper divisors (1203282770872) is greater than itself. Its abundance is 562938097904

Bases of 640344672968

• Binary: 1001010100010111100001000100101011001000₂
• Hexadecimal: 0x9517844AC8
• Base-36: 8664ONUW

Squares and roots of 640344672968

• 640344672968 squared (640344672968²) is 410041300198494869929024
• 640344672968 cubed (640344672968³) is 262567762278978710970526570651423232
• The square root of 640344672968 is 800215.3916090343
• The cube root of 640344672968 is 8619.2855145729

Scales and comparisons

• 640,344,672,968 seconds is equal to 20,360 years, 50 weeks, 6 days, 16 hours, 16 minutes, 8 seconds.
• To count from 1 to 640,344,672,968 would take you about forty thousand, seven hundred twenty-one 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 640344672968 cubic inches would be around 718.3 feet tall.

Recreational maths with 640344672968

• 640344672968 backwards is 869276443046
• The number of decimal digits it has is: 12
• The sum of 640344672968's digits is 59
• More coming soon!