640463197920

Names of 640463197920

• Cardinal: 640463197920 can be written as Six hundred forty billion, four hundred sixty-three million, one hundred ninety-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 6.4046319792 × 10¹¹

Factors of 640463197920

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 23395

Divisors of 640463197920

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 17 20 21 24 26 28 30 32 34 35 37 39 40 42 48 51 52 56 60 65 68 70 74 78 80 84 85 91 96 102 104 105 111 112 119 120 130 136 140 148 156 160 168 170 182 185 195 204 208 210 221 222 224 238 240 255 259 260 272 273 280 296 312 336 340 357 364 370 390 408 416 420 442 444 455 476 480 481 510 518 520 544 546 555 560 592 595 624 629 663 672 680 714 728 740 777 780 816 840 884 888 910 952 962 1020 1036 1040 1092 1105 1110 1120 1184 1190 1248 1258 1295 1326 1360 1365 1428 1443 1456 1480 1547 1554 1560 1632 1680 1768 1776 1785 1820 1887 1904 1924 2040 2072 2080 2184 2210 2220 2380 2405 2516 2590 2652 2720 2730 2856 2886 2912 2960 3094 3108 3120 3145 3315 3360 3367 3536 3552 3570 3640 3774 3808 3848 3885 4080 4144 4368 4403 4420 4440 4641 4760 4810 5032 5180 5304 5460 5712 5772 5920 6188 6216 6240 6290 6630 6734 7072 7140 7215 7280 7548 7696 7735 7770 8160 8177 8288 8736 8806 8840 8880 9282 9435 9520 9620 10064 10101 10360 10608 10920 11424 11544 12376 12432 12580 13209 13260 13468 14280 14430 14560 15096 15392 15470 15540 16354 16835 17612 17680 17760 18564 18870 19040 19240 20128 20202 20720 21216 21840 22015 23088 23205 23311 24531 24752 24864 25160 26418 26520 26936 28560 28860 30192 30940 31080 32708 33670 35224 35360 37128 37740 38480 40404 40885 41440 43680 44030 46176 46410 46622 49062 49504 50320 50505 52836 53040 53872 57120 57239 57720 60384 61880 62160 65416 66045 67340 69933 70448 74256 75480 76960 80808 81770 88060 92820 93244 98124 100640 101010 105672 106080 107744 114478 115440 116555 122655 123760 124320 130832 132090 134680 139866 140896 148512 150960 161616 163177 163540 171717 176120 185640 186488 196248 202020 211344 228956 230880 233110 245310 247520 261664 264180 269360 279732 286195 301920 303043 323232 326354 327080 343434 349665 352240 371280 372976 392496 396287 404040 422688 457912 466220 489531 490620 528360 538720 559464 572390 606086 652708 654160 686868 699330 704480 742560 745952 784992 792574 808080 815885 858585 862507 909129 915824 932440 979062 981240 1056720 1118928 1144780 1188861 1212172 1305416 1308320 1373736 1398660 1515215 1585148 1616160 1631770 1717170 1725014 1818258 1831648 1864880 1958124 1962480 1981435 2113440 2121301 2237856 2289560 2377722 2424344 2447655 2587521 2610832 2747472 2774009 2797320 3030430 3170296 3263540 3434340 3450028 3636516 3729760 3916248 3924960 3962870 4242602 4312535 4545645 4579120 4755444 4848688 4895310 5151731 5175042 5221664 5494944 5548018 5594640 5944305 6037549 6060860 6340592 6363903 6527080 6868680 6900056 7273032 7832496 7925740 8322027 8485204 8625070 9091290 9158240 9510888 9697376 9790620 10303462 10350084 10606505 11096036 11189280 11212591 11888610 12075098 12121720 12681184 12727806 12937605 13054160 13737360 13800112 13870045 14546064 14662619 15455193 15664992 15851480 16644054 16970408 17250140 18112647 18182580 19021776 19581240 20606924 20700168 21213010 22192072 22425182 23777220 24150196 24243440 25455612 25758655 25875210 26108320 27474720 27600224 27740090 29092128 29325238 30187745 30910386 31702960 31819515 33288108 33637773 33940816 34500280 36062117 36225294 36365160 38043552 39162480 41213848 41400336 41610135 42426020 43987857 44384144 44850364 47554440 48300392 48486880 50911224 51517310 51750420 55480180 56062955 58650476 60375490 61820772 63405920 63639030 66576216 67275546 67881632 69000560 72124234 72450588 72730320 73313095 77275965 78324960 78488137 82427696 82800672 83220270 84852040 87975714 88768288 89700728 90563235 95108880 96600784 101822448 102638333 103034620 103500840 108186351 110960360 112125910 117300952 120750980 123641544 127278060 133152432 134551092 138001120 144248468 144901176 145460640 146626190 154551930 156976274 164855392 166440540 168188865 169704080 175951428 179401456 180310585 181126470 190217760 190614047 193201568 203644896 205276666 206069240 207001680 216372702 219939285 221920720 224251820 234601904 235464411 241501960 247283088 254556120 266304864 269102184 288496936 289802352 293252380 307914999 309103860 313952548 332881080 336377730 339408160 351902856 358802912 360621170 362252940 381228094 392440685 410553332 412138480 414003360 432745404 439878570 443841440 448503640 469203808 470928822 483003920 494566176 509112240 513191665 538204368 540931755 571842141 576993872 579604704 586504760 615829998 618207720 627905096 665762160 672755460 703805712 721242340 724505880 762456188 784881370 821106664 824276960 865490808 879757140 897007280 941857644 953070235 966007840 1018224480 1026383330 1076408736 1081863510 1143684282 1153987744 1173009520 1177322055 1231659996 1236415440 1255810192 1331524320 1334298329 1345510920 1407611424 1442484680 1449011760 1524912376 1539574995 1569762740 1642213328 1730981616 1759514280 1794014560 1883715288 1906140470 2052766660 2163727020 2287368564 2346019040 2354644110 2463319992 2472830880 2511620384 2668596658 2691021840 2859210705 2884969360 2898023520 3049824752 3079149990 3139525480 3284426656 3461963232 3519028560 3767430576 3812280940 4002894987 4105533320 4327454040 4574737128 4709288220 4926639984 5337193316 5382043680 5718421410 5769938720 6099649504 6158299980 6279050960 6671491645 7038057120 7534861152 7624561880 8005789974 8211066640 8654908080 9149474256 9418576440 9853279968 10674386632 11436842820 12316599960 12558101920 13342983290 15249123760 16011579948 16422133280 17309816160 18298948512 18837152880 20014474935 21348773264 22873685640 24633199920 26685966580 30498247520 32023159896 37674305760 40028949870 42697546528 45747371280 49266399840 53371933160 64046319792 80057899740 91494742560 106743866320 128092639584 160115799480 213487732640 320231598960 640463197920
• Sum of all divisors σ(n): 2700259172352
• Sum of proper divisors (its aliquot sum) s(n): 2059795974432
• 640463197920 is an abundant number, because the sum of its proper divisors (2059795974432) is greater than itself. Its abundance is 1419332776512

Bases of 640463197920

• Binary: 1001010100011110100101001101011011100000₂
• Hexadecimal: 0x951E94D6E0
• Base-36: 868392AO

Squares and roots of 640463197920

• 640463197920 squared (640463197920²) is 410193107889913092326400
• 640463197920 cubed (640463197920³) is 262713589643917322422242356441088000
• The square root of 640463197920 is 800289.4463380107
• The cube root of 640463197920 is 8619.8172789077

Scales and comparisons

• 640,463,197,920 seconds is equal to 20,364 years, 38 weeks, 6 days, 11 hours, 52 minutes.
• To count from 1 to 640,463,197,920 would take you about forty thousand, seven hundred twenty-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 640463197920 cubic inches would be around 718.3 feet tall.

Recreational maths with 640463197920

• 640463197920 backwards is 029791364046
• 640463197920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640463197920's digits is 51
• More coming soon!