640990168000

Names of 640990168000

• Cardinal: 640990168000 can be written as Six hundred forty billion, nine hundred ninety million, one hundred sixty-eight thousand.

Scientific notation

• Scientific notation: 6.40990168 × 10¹¹

Factors of 640990168000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 195

Divisors of 640990168000

• Number of divisors d(n): 1120
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 17 20 25 26 28 32 34 35 40 49 50 52 56 64 65 68 70 80 85 91 98 100 104 112 119 125 130 136 140 151 160 170 175 182 196 200 208 221 224 238 245 250 260 272 280 302 320 325 340 343 350 364 392 400 416 425 442 448 455 476 490 500 520 544 560 595 604 637 650 680 686 700 728 755 784 800 832 833 850 875 884 910 952 980 1000 1040 1057 1088 1105 1120 1190 1208 1225 1274 1300 1360 1372 1400 1456 1510 1547 1568 1600 1625 1666 1700 1715 1750 1768 1820 1904 1960 1963 2000 2080 2114 2125 2210 2240 2275 2380 2401 2416 2450 2548 2567 2600 2720 2744 2800 2912 2975 3020 3094 3136 3185 3250 3332 3400 3430 3500 3536 3640 3775 3808 3920 3926 4000 4160 4165 4228 4250 4420 4459 4550 4760 4802 4832 4900 5096 5134 5200 5285 5440 5488 5525 5600 5824 5831 5950 6040 6125 6188 6370 6500 6664 6800 6860 7000 7072 7280 7399 7550 7616 7735 7840 7852 8000 8330 8456 8500 8575 8840 8918 9100 9520 9604 9664 9800 9815 10192 10268 10400 10570 10829 10976 11050 11200 11375 11662 11900 12005 12080 12250 12376 12740 12835 13000 13328 13600 13720 13741 14000 14144 14560 14798 14875 15100 15470 15680 15704 15925 16660 16912 17000 17150 17680 17836 17969 18200 18875 19040 19208 19600 19630 20384 20536 20800 20825 21140 21658 21952 22100 22295 22750 23324 23800 24010 24160 24500 24752 25480 25670 26000 26425 26656 27200 27440 27482 27625 28000 29120 29155 29596 29750 30200 30940 31213 31408 31850 33320 33371 33824 34000 34300 35360 35672 35938 36400 36995 37750 38080 38416 38675 39200 39260 40768 40817 41072 41650 42280 42875 43316 44200 44590 45500 46648 47600 48020 48320 49000 49075 49504 50960 51340 51793 52000 52850 53312 54145 54880 54964 55250 56000 58310 59192 59500 60025 60400 61880 62426 62816 63700 64175 66640 66742 67648 68000 68600 68705 70720 71344 71876 72800 73990 75500 75803 76832 77350 78400 78520 79625 81634 82144 83300 84560 85750 86632 88400 89180 89845 91000 93296 95200 96040 96187 98000 98150 99008 101920 102680 103586 104000 104125 105700 108290 109760 109928 110500 111475 116620 118384 119000 120050 120800 123760 124852 125632 125783 127400 128350 132125 133280 133484 136000 137200 137410 142688 143752 145600 145775 147980 151000 151606 153664 154700 156065 157040 159250 163268 164288 166600 166855 169120 171500 173264 176800 178360 179690 182000 184975 186592 190400 192080 192374 193375 196000 196300 203840 204085 205360 207172 208250 211400 216580 219856 221000 222950 233240 233597 236768 238000 240100 241600 245375 247520 249704 251566 254800 256700 258965 264250 266560 266968 270725 274400 274820 285376 287504 291550 295960 300125 302000 303212 309400 312130 314080 318500 320875 326536 333200 333710 338240 343000 343525 346528 353600 356720 359380 362551 364000 369950 373184 379015 384160 384748 386750 392000 392600 408170 410720 414344 416500 422800 433160 439712 442000 445900 449225 466480 467194 473536 476000 480200 480935 490750 495040 499408 503132 509600 513400 517930 528500 530621 533936 541450 548800 549640 557375 575008 583100 591920 600250 604000 606424 618800 624260 628160 628915 637000 641750 653072 666400 667420 673309 686000 687050 693056 713440 718760 725102 728000 728875 739900 758030 768320 769496 773500 780325 785200 816340 821440 828688 833000 834275 845600 866320 879424 880481 884000 891800 898450 924875 932960 934388 952000 960400 961870 981500 998816 1006264 1019200 1020425 1026800 1035860 1057000 1061242 1067872 1082900 1099280 1114750 1150016 1166200 1167985 1183840 1200500 1208000 1212848 1237600 1248520 1257830 1274000 1283500 1294825 1306144 1332800 1334840 1346618 1353625 1372000 1374100 1426880 1437520 1450204 1457750 1479800 1516060 1538992 1547000 1560650 1570400 1632680 1635179 1657376 1666000 1668550 1691200 1717625 1732640 1760962 1768000 1783600 1796900 1812755 1849750 1865920 1868776 1895075 1920800 1923740 1963000 1997632 2012528 2040850 2053600 2071720 2114000 2122484 2135744 2165800 2198560 2229500 2246125 2332400 2335970 2367680 2401000 2404675 2425696 2475200 2497040 2515660 2548000 2567000 2589650 2612288 2653105 2669680 2693236 2707250 2744000 2748200 2875040 2900408 2915500 2959600 3032120 3077984 3094000 3121300 3140800 3144575 3265360 3270358 3314752 3332000 3337100 3366545 3435250 3465280 3521924 3567200 3593800 3625510 3699500 3737552 3790150 3841600 3847480 3901625 3926000 4025056 4081700 4107200 4143440 4171375 4228000 4244968 4331600 4397120 4402405 4459000 4492250 4664800 4671940 4713163 4802000 4809350 4851392 4994080 5031320 5096000 5102125 5134000 5179300 5306210 5339360 5386472 5414500 5496400 5750080 5800816 5831000 5839925 5919200 6064240 6155968 6163367 6188000 6242600 6289150 6474125 6530720 6540716 6664000 6674200 6733090 6870500 7043848 7134400 7187600 7251020 7399000 7475104 7580300 7694960 7803250 7852000 8050112 8163400 8175895 8286880 8342750 8456000 8489936 8663200 8804810 8918000 8984500 9063775 9329600 9343880 9426326 9475375 9604000 9618700 9988160 10062640 10204250 10268000 10358600 10612420 10678720 10772944 10829000 10992800 11446253 11601632 11662000 11679850 11838400 12023375 12128480 12326734 12376000 12485200 12578300 12948250 13061440 13081432 13265525 13348400 13466180 13741000 14087696 14375200 14502040 14798000 14950208 15160600 15389920 15606500 15704000 15722875 16326800 16351790 16573760 16685500 16832725 16979872 17326400 17609620 17836000 17969000 18127550 18687760 18852652 18950750 19208000 19237400 20125280 20408500 20536000 20717200 21224840 21545888 21658000 21985600 22012025 22892506 23203264 23324000 23359700 23565815 24046750 24256960 24653468 24970400 25156600 25896500 26162864 26531050 26696800 26932360 27482000 28175392 28750400 29004080 29199625 29596000 30321200 30779840 30816835 31213000 31445750 32653600 32703580 33371000 33665450 33959744 35219240 35672000 35938000 36255100 37375520 37705304 37901500 38474800 40250560 40817000 40879475 41434400 42449680 43091776 43316000 44024050 45318875 45785012 46648000 46719400 47131630 48093500 49306936 49940800 50313200 51793000 52325728 53062100 53393600 53864720 54964000 56350784 57231265 58008160 58399250 59192000 60642400 61633670 62426000 62891500 65307200 65407160 66327625 66742000 67330900 70438480 71876000 72510200 74751040 75410608 75803000 76949600 80123771 81634000 81758950 82868800 84163625 84899360 86632000 88048100 90637750 91570024 93438800 94263260 96187000 98613872 100626400 103586000 104651456 106124200 107729440 109928000 110060125 114462530 116016320 116798500 117829075 121284800 123267340 124852000 125783000 130814320 132655250 133484000 134661800 140876960 143752000 145020400 150821216 151606000 153899200 154084175 160247542 163268000 163517900 168327250 169798720 176096200 181275500 183140048 186877600 188526520 192374000 197227744 201252800 204397375 207172000 212248400 215458880 220120250 228925060 233597000 235658150 246534680 249704000 251566000 261628640 265310500 266968000 269323600 281753920 286156325 290040800 301642432 303212000 308168350 320495084 326536000 327035800 336654500 352192400 362551000 366280096 373755200 377053040 384748000 394455488 400618855 408794750 414344000 424496800 440240500 457850120 467194000 471316300 493069360 503132000 523257280 530621000 538647200 572312650 580081600 589145375 606424000 616336700 640990168 654071600 673309000 704384800 725102000 732560192 754106080 769496000 770420875 801237710 817589500 848993600 880481000 915700240 934388000 942632600 986138720 1006264000 1061242000 1077294400 1144625300 1178290750 1232673400 1281980336 1308143200 1346618000 1408769600 1430781625 1450204000 1508212160 1540841750 1602475420 1635179000 1760962000 1831400480 1868776000 1885265200 1972277440 2003094275 2122484000 2289250600 2356581500 2465346800 2563960672 2616286400 2693236000 2861563250 2900408000 3081683500 3204950840 3270358000 3521924000 3662800960 3770530400 4006188550 4244968000 4578501200 4713163000 4930693600 5127921344 5386472000 5723126500 6163367000 6409901680 6540716000 7043848000 7541060800 8012377100 9157002400 9426326000 9861387200 10015471375 11446253000 12326734000 12819803360 13081432000 16024754200 18314004800 18852652000 20030942750 22892506000 24653468000 25639606720 32049508400 37705304000 40061885500 45785012000 49306936000 64099016800 80123771000 91570024000 128198033600 160247542000 320495084000 640990168000
• Sum of all divisors σ(n): 2125619653248
• Sum of proper divisors (its aliquot sum) s(n): 1484629485248
• 640990168000 is an abundant number, because the sum of its proper divisors (1484629485248) is greater than itself. Its abundance is 843639317248

Bases of 640990168000

• Binary: 1001010100111101111111011100001111000000₂
• Hexadecimal: 0x953DFDC3C0
• Base-36: 86GSZV0G

Squares and roots of 640990168000

• 640990168000 squared (640990168000²) is 410868395472668224000000
• 640990168000 cubed (640990168000³) is 263362601839916044310021632000000000
• The square root of 640990168000 is 800618.6158215409
• The cube root of 640990168000 is 8622.1807457273

Scales and comparisons

• 640,990,168,000 seconds is equal to 20,381 years, 26 weeks, 1 day, 16 hours, 26 minutes, 40 seconds.
• To count from 1 to 640,990,168,000 would take you about forty thousand, seven hundred sixty-three 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 640990168000 cubic inches would be around 718.5 feet tall.

Recreational maths with 640990168000

• 640990168000 backwards is 000861099046
• The number of decimal digits it has is: 12
• The sum of 640990168000's digits is 43
• More coming soon!