640675478520

Names of 640675478520

• Cardinal: 640675478520 can be written as Six hundred forty billion, six hundred seventy-five million, four hundred seventy-eight thousand, five hundred twenty.

Scientific notation

• Scientific notation: 6.4067547852 × 10¹¹

Factors of 640675478520

• Number of distinct prime factors ω(n): 9
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 682

Divisors of 640675478520

• Number of divisors d(n): 1536
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 18 20 21 22 24 28 29 30 31 33 35 36 40 42 44 45 47 55 56 58 60 62 63 66 70 72 77 84 87 88 90 93 94 99 105 110 116 120 124 126 132 140 141 145 154 155 165 168 174 180 186 188 198 203 210 217 220 231 232 235 248 252 261 264 279 280 282 290 308 310 315 319 329 330 341 348 360 372 376 385 396 406 420 423 434 435 440 462 465 470 495 504 517 522 547 558 564 580 609 616 620 630 638 651 658 660 682 693 696 705 744 770 792 812 840 846 868 870 899 924 930 940 957 987 990 1015 1023 1034 1044 1085 1094 1116 1128 1155 1160 1218 1240 1260 1276 1302 1305 1316 1320 1363 1364 1386 1395 1410 1457 1540 1551 1595 1624 1641 1645 1692 1705 1736 1740 1798 1827 1848 1860 1880 1914 1953 1974 1980 2030 2046 2068 2088 2115 2170 2188 2232 2233 2310 2387 2436 2520 2552 2585 2604 2610 2632 2697 2726 2728 2735 2772 2790 2820 2871 2914 2961 3045 3069 3080 3102 3190 3255 3282 3290 3384 3410 3465 3480 3596 3619 3654 3720 3828 3829 3906 3948 3960 4060 4089 4092 4136 4230 4340 4371 4376 4466 4495 4620 4653 4774 4785 4872 4923 4935 5115 5170 5208 5220 5394 5452 5470 5544 5580 5640 5742 5828 5922 6017 6090 6138 6204 6293 6380 6510 6564 6580 6699 6815 6820 6930 7161 7192 7238 7285 7308 7656 7658 7755 7812 7896 8091 8120 8178 8184 8205 8460 8680 8742 8932 8990 9135 9240 9306 9541 9548 9570 9765 9846 9870 9889 10199 10230 10340 10440 10788 10857 10904 10940 11160 11165 11484 11487 11656 11844 11935 12034 12180 12267 12276 12408 12586 12760 13020 13113 13128 13160 13398 13485 13630 13640 13860 14322 14355 14476 14570 14616 14805 14993 15316 15345 15510 15624 15863 16027 16182 16356 16410 16920 16957 17484 17864 17980 18051 18095 18270 18612 18879 19082 19096 19140 19145 19530 19692 19740 19778 20097 20398 20445 20460 20680 21483 21576 21714 21855 21880 22330 22968 22974 23265 23688 23870 24068 24360 24534 24552 24615 25172 25709 26040 26226 26796 26970 27260 27720 28623 28644 28710 28952 29140 29610 29667 29986 30085 30597 30632 30690 31020 31465 31726 32054 32364 32571 32712 32820 33495 33914 34461 34968 35805 35960 36102 36190 36540 37224 37758 38164 38280 38290 39060 39384 39480 39556 40194 40455 40796 40890 40920 42119 42253 42966 43428 43710 44660 44979 45948 46530 47589 47705 47740 48081 48136 49068 49230 49445 50344 50871 50995 51418 52452 53592 53940 54153 54285 54520 56637 57246 57288 57420 57435 58280 59220 59334 59972 60170 61194 61335 61380 62040 62930 63452 64108 64728 65142 65565 65640 66990 67828 68922 69223 71610 72204 72380 73080 74965 75516 76328 76580 77127 78120 79112 79315 80135 80388 80910 81592 81780 84238 84506 84785 85869 85932 86856 87420 89001 89320 89958 90255 91791 91896 93060 94395 95178 95410 95480 96162 98136 98460 98890 100485 101742 101990 102836 104904 104951 107415 107880 108306 108570 111041 112189 113274 114492 114840 114870 118440 118668 118699 119944 120340 122388 122670 122760 125860 126357 126759 126904 128216 128545 130284 131130 133980 134937 135656 137844 138446 142767 143115 143220 144243 144408 144760 148335 149930 151032 152613 152985 153160 154254 158630 160270 160776 161820 162855 163560 168476 169012 169570 171738 171864 172305 174493 174840 178002 179916 179963 180510 183582 186120 186527 188790 190356 190820 192324 196920 197780 200970 203484 203980 205672 207669 209902 210595 211265 214830 216612 217140 222082 224378 224895 226548 228984 229740 231381 237336 237398 237945 240405 240680 244776 245340 251720 252714 253518 254355 257090 260568 262260 267960 269874 270765 275688 276892 282799 283185 285534 286230 286440 288486 295771 296670 299860 305226 305970 308508 314853 317260 320540 323640 325710 333123 336567 336952 338024 339140 343476 344610 346115 348986 356004 356097 359832 359926 361020 367164 373054 377580 379071 380277 380712 381640 384648 385635 395560 401940 406968 407960 415338 419804 421190 422530 429345 429660 433224 434280 444164 445005 448756 449790 453096 458955 459480 462762 464783 474796 475890 480810 490680 491753 505428 507036 508710 514180 523479 524520 524755 539748 539889 541530 553784 555205 559581 560945 565598 566370 571068 572460 576972 591542 593340 593495 599720 610452 611940 617016 623007 629706 631785 633795 634520 641080 651420 666246 673134 674685 678280 686952 689220 692230 697972 712008 712194 713835 719852 721215 722040 734328 745561 746108 755160 758142 760554 763065 771270 796979 803880 830676 839608 842380 845060 848397 858690 859320 872465 887313 888328 890010 897512 899580 899815 917910 925524 929566 932635 944559 949592 951780 961620 983506 999369 1009701 1010856 1014072 1017420 1028360 1038345 1046958 1049510 1068291 1079496 1079778 1083060 1110410 1119162 1121890 1131196 1132740 1142136 1144920 1153944 1156905 1183084 1186680 1186990 1220904 1221451 1223880 1246014 1259412 1263570 1267590 1302840 1305689 1332492 1346268 1349370 1378440 1384460 1394349 1395944 1413995 1424388 1427670 1439704 1442430 1475259 1478855 1491122 1492216 1516284 1521108 1526130 1542540 1570437 1574265 1593958 1619667 1661352 1665615 1678743 1682835 1684760 1690120 1696794 1717380 1744930 1774626 1780020 1780485 1799160 1799630 1835820 1851048 1859132 1865270 1889118 1895355 1901385 1903560 1923240 1967012 1979593 1998738 2019402 2034840 2076690 2093916 2099020 2136582 2159556 2166120 2220820 2236683 2238324 2243780 2262392 2265480 2313810 2323915 2366168 2373980 2390937 2442902 2458765 2492028 2518824 2527140 2535180 2545191 2611378 2617395 2661939 2664984 2692536 2698740 2699445 2768920 2788698 2797905 2827990 2848776 2855340 2884860 2950518 2957710 2982244 3032568 3042216 3052260 3085080 3115035 3140874 3148530 3187916 3239334 3253481 3331230 3357486 3365670 3393588 3434760 3442271 3489860 3549252 3560040 3560970 3599260 3664353 3671640 3718264 3727805 3730540 3778236 3790710 3802770 3917067 3934024 3959186 3984895 3997476 4038804 4153380 4183047 4187832 4198040 4241985 4273164 4319112 4425777 4436565 4441640 4473366 4476648 4487560 4627620 4647830 4722795 4747960 4781874 4885804 4917530 4984056 4996845 5048505 5054280 5070360 5090382 5218927 5222756 5234790 5323878 5341455 5397480 5398890 5409283 5577396 5578853 5595810 5655980 5710680 5769720 5901036 5915420 5938779 5964488 6104520 6107255 6230070 6281748 6297060 6375832 6478668 6506962 6528445 6662460 6710049 6714972 6731340 6787176 6884542 6971745 6979720 7098504 7121940 7172811 7198520 7328706 7376295 7455610 7461080 7556472 7581420 7605540 7834134 7852185 7918372 7969790 7994952 8077608 8098335 8201171 8306760 8366094 8393715 8483970 8546328 8766769 8851554 8873130 8946732 9255240 9295660 9445590 9563748 9760443 9771608 9835060 9897965 9993690 10097010 10180764 10326813 10437854 10445512 10469580 10647756 10682910 10797780 10818566 10993059 11154792 11157706 11183415 11191620 11311960 11751201 11802072 11830840 11877558 11954685 12214510 12460140 12563496 12594120 12725955 12957336 13013924 13056890 13309695 13324920 13420098 13429944 13462680 13769084 13943490 14243880 14345622 14657412 14752590 14911220 15162840 15211080 15656781 15668268 15704370 15836744 15939580 16196670 16227849 16267405 16402342 16732188 16736559 16787430 16967940 17211355 17533538 17703108 17746260 17816337 17893464 18321765 18591320 18891180 19127496 19520886 19585335 19670120 19795930 19987380 20194020 20361528 20653626 20875708 20915235 20939160 21295512 21365820 21595560 21637132 21986118 22128885 22315412 22366830 22383240 23112391 23502402 23755116 23909370 24429020 24603513 24920280 25451910 26027848 26094635 26113780 26300307 26619390 26840196 27046415 27538168 27886980 27894265 28691244 29281329 29314824 29505180 29693895 29822440 30980439 31313562 31336536 31408740 31879160 32393340 32455698 32534810 32804684 33464376 33473118 33550245 33574860 33935880 34422710 35067076 35406216 35492520 35632674 35864055 36643530 37782360 37864981 39041772 39170670 39591860 39974760 40388040 41005855 41307252 41751416 41830470 42731640 43274264 43833845 43972236 44257770 44630824 44733660 46224782 46970343 47004804 47510232 47818740 48683547 48802215 48858040 49207026 50209677 50903820 51634065 52189270 52227560 52600614 53238780 53680392 54092830 54965295 55773960 55788530 57382488 57408197 58562658 58756005 59010360 59387790 61367383 61960878 62627124 62817480 64786680 64911396 65069620 65609368 66946236 67100490 67149720 68845420 69337173 70134152 71265348 71728110 73287060 73810539 75729962 78083544 78283905 78341340 78900921 79183720 81139245 82011710 82614504 83660940 83682795 87667690 87944472 88515540 89081685 89467320 92449564 93940686 94009608 95637480 97367094 97604430 98414052 100419354 101807640 103268130 104378540 105201228 106477560 108185660 109930590 111577060 113594943 114816394 115561955 117125316 117512010 118775580 122734766 123017565 123921756 125254248 129822792 130139240 131501535 133892472 134200980 137690840 138674346 142530696 143456220 146406645 146574120 147621078 151459924 154902195 156567810 156682680 157801842 161786737 162278490 164023420 167321880 167365590 172224591 175335380 177031080 178163370 184102149 184899128 187881372 189324905 194734188 195208860 196828104 200838708 206536260 208011519 208757080 210402456 216371320 219861180 223154120 227189886 229632788 231123910 234250632 234851715 235024020 237551160 243417735 245469532 246035130 247843512 251048385 254236301 263003070 268401960 277348692 286912440 287040985 292813290 295242156 302919848 306836915 309804390 313135620 315603684 323573474 324556980 328046840 334731180 340784829 344449182 346685865 350670760 356326740 368204298 369052695 375762744 378649810 389468376 390417720 394504605 401677416 413072520 416023038 439722360 454379772 459265576 462247820 469703430 470048040 485360211 486835470 490939064 492070260 502096770 508472602 516673773 526006140 552306447 554697384 567974715 574081970 585626580 590484312 613673830 619608780 626271240 631207368 647146948 649113960 669462360 681569658 688898364 693371730 712653480 736408596 738105390 757299620 762708903 789009210 808933685 832046076 861122955 908759544 920510745 924495640 939406860 970720422 973670940 984140520 1004193540 1016945204 1033347546 1040057595 1052012280 1104612894 1135949430 1148163940 1171253160 1227347660 1239217560 1271181505 1294293896 1363139316 1377796728 1386743460 1456080633 1472817192 1476210780 1514599240 1525417806 1578018420 1617867370 1664092152 1703924145 1722245910 1779654107 1841021490 1878813720 1941440844 1947341880 2008387080 2033890408 2066695092 2080115190 2209225788 2271898860 2288126709 2296327880 2426801055 2454695320 2542363010 2583368865 2726278632 2761532235 2773486920 2912161266 2952421560 3050835612 3156036840 3235734740 3407848290 3444491820 3559308214 3682042980 3813544515 3882881688 4133390184 4160230380 4418451576 4543797720 4576253418 4853602110 5084726020 5166737730 5338962321 5523064470 5824322532 6101671224 6471469480 6815696580 6888983640 7118616428 7280403165 7364085960 7627089030 8320460760 8898270535 9152506836 9707204220 10169452040 10333475460 10677924642 11046128940 11440633545 11648645064 13631393160 14237232856 14560806330 15254178060 16016886963 17796541070 18305013672 19414408440 20666950920 21355849284 22092257880 22881267090 26694811605 29121612660 30508356120 32033773926 35593082140 42711698568 45762534180 53389623210 58243225320 64067547852 71186164280 80084434815 91525068360 106779246420 128135095704 160168869630 213558492840 320337739260 640675478520
• Sum of all divisors σ(n): 2836286668800
• Sum of proper divisors (its aliquot sum) s(n): 2195611190280
• 640675478520 is an abundant number, because the sum of its proper divisors (2195611190280) is greater than itself. Its abundance is 1554935711760

Bases of 640675478520

• Binary: 1001010100101011001110111111101111111000₂
• Hexadecimal: 0x952B3BFBF8
• Base-36: 86BLMZ20

Squares and roots of 640675478520

• 640675478520 squared (640675478520²) is 410465068776830981390400
• 640675478520 cubed (640675478520³) is 262974904354340900091455734934208000
• The square root of 640675478520 is 800422.0627394025
• The cube root of 640675478520 is 8620.7695156969

Scales and comparisons

• 640,675,478,520 seconds is equal to 20,371 years, 25 weeks, 6 days, 10 hours, 42 minutes.
• To count from 1 to 640,675,478,520 would take you about forty thousand, seven hundred forty-two 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 640675478520 cubic inches would be around 718.4 feet tall.

Recreational maths with 640675478520

• 640675478520 backwards is 025874576046
• The number of decimal digits it has is: 12
• The sum of 640675478520's digits is 54
• More coming soon!