640474361856

Names of 640474361856

• Cardinal: 640474361856 can be written as Six hundred forty billion, four hundred seventy-four million, three hundred sixty-one thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 6.40474361856 × 10¹¹

Factors of 640474361856

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 49

Divisors of 640474361856

• Number of divisors d(n): 624
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 37 42 48 49 56 63 64 72 74 84 96 98 111 112 126 128 144 147 148 168 192 196 222 224 252 256 259 288 294 296 333 336 343 384 392 441 444 448 504 512 518 576 588 592 666 672 686 768 777 784 882 888 896 1008 1024 1029 1036 1152 1176 1184 1332 1344 1369 1372 1536 1554 1568 1764 1776 1792 1813 2016 2048 2058 2072 2304 2331 2352 2368 2664 2688 2738 2744 3072 3087 3108 3136 3528 3552 3584 3626 4032 4096 4107 4116 4144 4608 4662 4704 4736 5328 5376 5439 5476 5488 6144 6174 6216 6272 7056 7104 7168 7252 8064 8214 8232 8288 9216 9324 9408 9472 9583 10656 10752 10878 10952 10976 12288 12321 12348 12432 12544 12691 14112 14208 14336 14504 16128 16317 16428 16464 16576 18432 18648 18816 18944 19166 21312 21504 21756 21904 21952 24642 24696 24864 25088 25382 28224 28416 28672 28749 29008 32256 32634 32856 32928 33152 36864 37296 37632 37888 38073 38332 42624 43008 43512 43808 43904 49284 49392 49728 50176 50653 50764 56448 56832 57498 58016 64512 65268 65712 65856 66304 67081 74592 75264 75776 76146 76664 85248 86016 86247 87024 87616 87808 98568 98784 99456 100352 101306 101528 112896 113664 114219 114996 116032 129024 130536 131424 131712 132608 134162 149184 150528 151552 151959 152292 153328 170496 172494 174048 175232 175616 197136 197568 198912 200704 201243 202612 203056 225792 227328 228438 229992 232064 258048 261072 262848 263424 265216 268324 298368 301056 303918 304584 306656 340992 344988 348096 350464 351232 354571 394272 395136 397824 402486 405224 406112 451584 454656 455877 456876 459984 464128 469567 522144 525696 526848 530432 536648 596736 602112 603729 607836 609168 613312 681984 689976 696192 700928 702464 709142 788544 790272 795648 804972 810448 812224 903168 911754 913752 919968 928256 939134 1044288 1051392 1053696 1060864 1063713 1073296 1193472 1207458 1215672 1218336 1226624 1363968 1379952 1392384 1401856 1404928 1408701 1418284 1577088 1580544 1591296 1609944 1620896 1624448 1806336 1823508 1827504 1839936 1856512 1878268 2088576 2102784 2107392 2127426 2146592 2386944 2414916 2431344 2436672 2453248 2481997 2759904 2784768 2803712 2817402 2836568 3154176 3161088 3182592 3191139 3219888 3241792 3248896 3647016 3655008 3679872 3713024 3756536 4177152 4205568 4214784 4226103 4254852 4293184 4773888 4829832 4862688 4873344 4906496 4963994 5519808 5569536 5607424 5634804 5673136 6308352 6322176 6382278 6439776 6483584 6497792 7294032 7310016 7359744 7426048 7445991 7513072 8354304 8411136 8452206 8509704 8586368 9547776 9659664 9725376 9746688 9812992 9927988 11039616 11139072 11269608 11346272 12616704 12644352 12764556 12879552 12967168 12995584 14588064 14620032 14719488 14891982 15026144 16708608 16822272 16904412 17019408 17172736 17373979 19319328 19450752 19493376 19625984 19855976 22079232 22278144 22337973 22539216 22692544 25233408 25529112 25759104 25934336 25991168 29176128 29240064 29438976 29783964 30052288 33417216 33808824 34038816 34345472 34747958 38638656 38901504 38986752 39251968 39711952 44158464 44675946 45078432 45385088 50466816 51058224 51518208 51868672 51982336 52121937 58352256 58480128 58877952 59567928 60104576 66834432 67617648 68077632 68690944 69495916 77277312 77803008 77973504 79423904 88316928 89351892 90156864 90770176 102116448 103036416 103737344 104243874 116704512 116960256 117755904 119135856 120209152 135235296 136155264 137381888 138991832 154554624 155606016 155947008 156365811 158847808 176633856 178703784 180313728 181540352 204232896 206072832 207474688 208487748 233409024 233920512 238271712 240418304 270470592 272310528 274763776 277983664 309109248 311212032 312731622 317695616 353267712 357407568 360627456 363080704 408465792 412145664 416975496 466818048 467841024 476543424 480836608 540941184 544621056 555967328 618218496 622424064 625463244 635391232 714815136 721254912 726161408 816931584 824291328 833950992 933636096 953086848 961673216 1081882368 1089242112 1111934656 1236436992 1250926488 1270782464 1429630272 1442509824 1452322816 1633863168 1667901984 1867272192 1906173696 1923346432 2163764736 2178484224 2223869312 2472873984 2501852976 2541564928 2859260544 2885019648 3267726336 3335803968 3812347392 4327529472 4356968448 4447738624 5003705952 5083129856 5718521088 5770039296 6535452672 6671607936 7624694784 8655058944 8895477248 10007411904 10166259712 11437042176 13070905344 13343215872 15249389568 17310117888 17790954496 20014823808 22874084352 26686431744 30498779136 35581908992 40029647616 45748168704 53372863488 71163817984 80059295232 91496337408 106745726976 160118590464 213491453952 320237180928 640474361856
• Sum of all divisors σ(n): 2217401992000
• Sum of proper divisors (its aliquot sum) s(n): 1576927630144
• 640474361856 is an abundant number, because the sum of its proper divisors (1576927630144) is greater than itself. Its abundance is 936453268288

Bases of 640474361856

• Binary: 1001010100011111001111110011000000000000₂
• Hexadecimal: 0x951F3F3000
• Base-36: 8689WCG0

Squares and roots of 640474361856

• 640474361856 squared (640474361856²) is 410207408194850427764736
• 640474361856 cubed (640474361856³) is 262727327992200532627987914100310016
• The square root of 640474361856 is 800296.4212440287
• The cube root of 640474361856 is 8619.8673627271

Scales and comparisons

• 640,474,361,856 seconds is equal to 20,365 years, 5 weeks, 2 days, 16 hours, 57 minutes, 36 seconds.
• To count from 1 to 640,474,361,856 would take you about forty thousand, seven hundred thirty 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 640474361856 cubic inches would be around 718.3 feet tall.

Recreational maths with 640474361856

• 640474361856 backwards is 658163474046
• The number of decimal digits it has is: 12
• The sum of 640474361856's digits is 54
• More coming soon!