640691359308

Names of 640691359308

• Cardinal: 640691359308 can be written as Six hundred forty billion, six hundred ninety-one million, three hundred fifty-nine thousand, three hundred eight.

Scientific notation

• Scientific notation: 6.40691359308 × 10¹¹

Factors of 640691359308

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 73

Divisors of 640691359308

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 13 14 18 21 22 26 27 28 33 36 37 39 42 44 52 54 63 66 74 77 78 81 84 91 99 108 111 117 126 132 143 148 154 156 162 169 182 189 198 222 231 234 243 252 259 273 286 297 308 324 333 338 351 364 378 396 407 429 444 462 468 481 486 507 518 546 567 572 594 666 676 693 702 756 777 814 819 858 891 924 962 972 999 1001 1014 1036 1053 1092 1134 1183 1188 1221 1287 1332 1369 1386 1404 1443 1521 1554 1628 1638 1701 1716 1782 1859 1924 1998 2002 2028 2079 2106 2268 2331 2366 2442 2457 2574 2673 2738 2772 2849 2886 2997 3003 3042 3108 3159 3276 3367 3402 3549 3564 3663 3718 3861 3996 4004 4107 4158 4212 4329 4563 4662 4732 4884 4914 5148 5291 5346 5476 5577 5698 5772 5994 6006 6084 6237 6253 6318 6734 6804 6993 7098 7326 7371 7436 7722 8214 8316 8547 8658 8991 9009 9126 9324 9583 9828 10101 10582 10647 10692 10989 11154 11396 11583 11988 12012 12321 12474 12506 12636 12987 13013 13468 13689 13986 14196 14652 14742 15059 15444 15873 16428 16731 17094 17316 17797 17982 18018 18252 18711 18759 19166 20202 20979 21164 21294 21978 22113 22308 23166 24642 24948 25012 25641 25974 26026 27027 27378 27972 28749 29484 30118 30303 31746 31941 32967 33462 34188 34749 35594 35964 36036 36963 37037 37422 37518 38332 38961 39039 40404 41067 41958 42588 43771 43956 44226 45177 46332 47619 49284 50193 50653 51282 51948 52052 53391 54054 54756 56277 57498 60236 60606 62937 63492 63882 65934 66924 68783 69498 71188 73926 74074 74844 75036 76923 77922 78078 81081 82134 83916 86247 87542 88452 90354 90909 95238 95823 98901 100386 101306 102564 105413 106782 108108 110889 111111 112554 114996 116883 117117 121212 124579 125874 127764 131313 131868 135531 137566 138996 142857 147852 148148 150579 151959 153846 155844 156156 160173 162162 164268 168831 172494 175084 180708 181818 190476 191646 195767 197802 200772 202612 206349 210826 213564 221778 222222 225108 230769 231361 233766 234234 243243 249158 251748 258741 262626 271062 272727 275132 285714 287469 301158 303918 307692 316239 320346 324324 332667 333333 337662 344988 351351 354571 363636 373737 383292 391534 393939 395604 406593 412698 421652 428571 443556 444444 451737 455877 461538 462722 467532 468468 480519 481481 486486 498316 506493 517482 525252 542124 545454 557183 571428 574938 587301 602316 607836 619047 632478 640692 658489 665334 666666 675324 692307 694083 702702 709142 747474 776223 783068 787878 813186 818181 825396 857142 903474 911754 923076 925444 948717 961038 962962 972972 999999 1012986 1034964 1054053 1063713 1090908 1114366 1121211 1149876 1174602 1181817 1219779 1238094 1264956 1285713 1316978 1330668 1333332 1367631 1370369 1384614 1388166 1405404 1418284 1441557 1444443 1494948 1519479 1552446 1575756 1619527 1626372 1636362 1671549 1714284 1761903 1806948 1823508 1857141 1897434 1922076 1925924 1975467 1999998 2025972 2082249 2108106 2127426 2228732 2242422 2328669 2349204 2363634 2439558 2476188 2544971 2571426 2633956 2735262 2740738 2769228 2776332 2846151 2883114 2888886 2999997 3038958 3104892 3162159 3191139 3239054 3272724 3343098 3363633 3523806 3545451 3659337 3714282 3794868 3900281 3950934 3999996 4102893 4111107 4164498 4216212 4254852 4324671 4333329 4484844 4609423 4657338 4727268 4858581 4879116 5014647 5089942 5142852 5285709 5470524 5481476 5571423 5692302 5766228 5777772 5926401 5999994 6077916 6246747 6324318 6382278 6478108 6686196 6727266 7047612 7090902 7243379 7318674 7428564 7634913 7800562 7901868 8205786 8222214 8328996 8538453 8560357 8649342 8666658 8999991 9218846 9314676 9573417 9717162 10029294 10090899 10179884 10571418 10636353 11142846 11384604 11700843 11852802 11999988 12308679 12333321 12493494 12648636 12764556 12999987 13454532 13828269 14181804 14486758 14575743 14637348 15043941 15269826 15601124 15857127 16411572 16444428 16714269 17076906 17120714 17298684 17333316 17779203 17814797 17999982 18437692 18740241 19146834 19434324 20058588 20181798 21142836 21272706 21730137 22285692 22904739 23401686 23705604 24617358 24666642 24986988 25615359 25681071 25999974 27656538 28720251 28973516 29151486 30087882 30272697 30539652 31714254 33428538 34153812 34241428 35102529 35558406 35629594 35999964 36999963 37480482 38293668 38999961 40363596 41484807 42545412 43460274 43727229 45131823 45809478 46803372 47571381 49234716 49333284 50703653 51230718 51362142 51999948 53337609 53444391 55313076 56220723 57440502 58302972 59922499 60175764 60545394 63428508 65190411 66857076 68714217 70205058 71116812 71259188 73999926 74960964 77043213 77999922 82969614 86160753 86920548 87454458 90263646 91618956 94163927 95142762 101407306 102461436 102724284 105307587 106675218 106888782 110999889 112441446 114881004 116999883 119844998 121090788 124454421 130380822 131181687 135395469 137428434 140410116 147999852 152110959 154086426 155999844 160012827 160333173 165939228 172321506 174908916 179767497 180527292 188327854 190285524 195571233 202814612 206142651 210615174 213350436 213777564 221999778 224882892 231129639 233999766 239689996 248908842 260761644 262363374 270790938 274856868 282491781 304221918 308172852 315922761 320025654 320666346 332999667 344643012 359534994 373363263 376655708 391142466 393545061 412285302 421230348 443999556 456332877 462259278 467999532 480999519 497817684 524726748 539302491 541581876 564983562 586713699 608443836 618427953 631845522 640051308 641332692 659147489 665999334 693388917 719069988 746726526 782284932 787090122 824570604 847475343 912665754 924518556 947768283 961999038 1078604982 1120089789 1129967124 1173427398 1236855906 1263691044 1318294978 1331998668 1368998631 1386777834 1442998557 1493453052 1574180244 1617907473 1694950686 1760141097 1825331508 1895536566 1923998076 1977442467 2080166751 2157209964 2240179578 2346854796 2473711812 2542426029 2636589956 2737997262 2773555668 2885997114 3235814946 3389901372 3520282194 3791073132 3954884934 4106995893 4160333502 4328995671 4480359156 4853722419 5084852058 5475994524 5771994228 5932327401 6471629892 7040564388 7627278087 7909769868 8213991786 8320667004 8657991342 9707444838 10169704116 11864654802 12320987679 14561167257 15254556174 16427983572 17315982684 17796982203 19414889676 22881834261 23729309604 24641975358 29122334514 30509112348 35593964406 45763668522 49283950716 53390946609 58244669028 71187928812 91527337044 106781893218 160172839827 213563786436 320345679654 640691359308
• Sum of all divisors σ(n): 2330375523840
• Sum of proper divisors (its aliquot sum) s(n): 1689684164532
• 640691359308 is an abundant number, because the sum of its proper divisors (1689684164532) is greater than itself. Its abundance is 1048992805224

Bases of 640691359308

• Binary: 1001010100101100001011100100111001001100₂
• Hexadecimal: 0x952C2E4E4C
• Base-36: 86BV3CR0

Squares and roots of 640691359308

• 640691359308 squared (640691359308²) is 410485417891932758238864
• 640691359308 cubed (640691359308³) is 262994460365294822723391512313746112
• The square root of 640691359308 is 800431.9829367141
• The cube root of 640691359308 is 8620.8407444163

Scales and comparisons

• 640,691,359,308 seconds is equal to 20,372 years, 1 day, 6 hours, 1 minute, 48 seconds.
• To count from 1 to 640,691,359,308 would take you about forty thousand, seven hundred forty-four 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 640691359308 cubic inches would be around 718.4 feet tall.

Recreational maths with 640691359308

• 640691359308 backwards is 803953196046
• 640691359308 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640691359308's digits is 54
• More coming soon!