64397823840

Names of 64397823840

• Cardinal: 64397823840 can be written as Sixty-four billion, three hundred ninety-seven million, eight hundred twenty-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 6.439782384 × 10¹⁰

Factors of 64397823840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1028

Divisors of 64397823840

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 53 56 60 63 70 72 80 84 90 96 105 106 112 120 126 140 144 149 159 160 168 180 210 212 224 240 252 265 280 288 298 315 318 336 360 371 420 424 447 477 480 504 530 560 596 630 636 672 720 742 745 795 809 840 848 894 954 1008 1043 1060 1113 1120 1192 1260 1272 1341 1440 1484 1490 1590 1618 1680 1696 1788 1855 1908 2016 2086 2120 2226 2235 2384 2385 2427 2520 2544 2682 2968 2980 3129 3180 3236 3339 3360 3576 3710 3816 4045 4172 4240 4452 4470 4768 4770 4854 5040 5088 5215 5364 5565 5663 5936 5960 6258 6360 6472 6678 6705 7152 7281 7420 7632 7897 8090 8344 8480 8904 8940 9387 9540 9708 10080 10430 10728 11130 11326 11872 11920 12135 12516 12720 12944 13356 13410 14304 14562 14840 15264 15645 15794 16180 16688 16695 16989 17808 17880 18774 19080 19416 20860 21456 22260 22652 23691 23840 24270 25032 25440 25888 26712 26820 28315 29124 29680 31290 31588 32360 33376 33390 33978 35616 35760 36405 37548 38160 38832 39485 41720 42877 42912 44520 45304 46935 47382 48540 50064 50967 53424 53640 55279 56630 58248 59360 62580 63176 64720 66780 67956 71073 71520 72810 75096 76320 77664 78970 83440 84945 85754 89040 90608 93870 94764 97080 100128 101934 106848 107280 110558 113260 116496 118455 120541 125160 126352 128631 129440 133560 135912 142146 145620 150192 157940 165837 166880 169890 171508 178080 181216 187740 189528 194160 203868 214385 214560 221116 226520 232992 236910 241082 250320 252704 254835 257262 267120 271824 276395 284292 291240 300139 300384 315880 331674 339780 343016 355365 361623 375480 379056 385893 388320 407736 428770 442232 453040 473820 482164 497511 500640 509670 514524 534240 543648 552790 568584 582480 600278 602705 631760 643155 663348 679560 686032 710730 723246 750960 758112 771786 815472 829185 843787 857540 884464 900417 906080 947640 964328 995022 1019340 1029048 1084869 1105580 1137168 1164960 1200556 1205410 1263520 1286310 1326696 1359120 1372064 1421460 1446492 1500695 1501920 1543572 1630944 1658370 1687574 1715080 1768928 1800834 1808115 1895280 1928656 1929465 1990044 2038680 2058096 2169738 2211160 2274336 2401112 2410820 2487555 2531361 2572620 2653392 2701251 2718240 2842920 2892984 3001390 3087144 3316740 3375148 3430160 3601668 3616230 3790560 3857312 3858930 3980088 4077360 4116192 4218935 4339476 4422320 4502085 4802224 4821640 4975110 5062722 5145240 5306784 5402502 5424345 5685840 5785968 6002780 6174288 6388673 6633480 6750296 6860320 7203336 7232460 7594083 7717860 7960176 8154720 8437870 8678952 8844640 9004170 9604448 9643280 9950220 10125444 10290480 10805004 10848690 11371680 11571936 12005560 12348576 12656805 12777346 13266960 13500592 13506255 14406672 14464920 15188166 15435720 15920352 16875740 17357904 18008340 19166019 19286560 19900440 20250888 20580960 21610008 21697380 24011120 25313610 25554692 26533920 27001184 27012510 28813344 28929840 30376332 30871440 31943365 33751480 34715808 36016680 37970415 38332038 39800880 40501776 43220016 43394760 44720711 48022240 50627220 51109384 54025020 57498057 57859680 60752664 61742880 63886730 67502960 72033360 75940830 76664076 79601760 81003552 86440032 86789520 89441422 95830095 101254440 102218768 108050040 114996114 121505328 127773460 134162133 135005920 144066720 151881660 153328152 173579040 178882844 191660190 202508880 204437536 216100080 223603555 229992228 243010656 255546920 268324266 287490285 303763320 306656304 357765688 383320380 402486399 405017760 432200160 447207110 459984456 511093840 536648532 574980570 607526640 613312608 670810665 715531376 766640760 804972798 894414220 919968912 1022187680 1073297064 1149961140 1215053280 1341621330 1431062752 1533281520 1609945596 1788828440 1839937824 2012431995 2146594128 2299922280 2683242660 3066563040 3219891192 3577656880 4024863990 4293188256 4599844560 5366485320 6439782384 7155313760 8049727980 9199689120 10732970640 12879564768 16099455960 21465941280 32198911920 64397823840
• Sum of all divisors σ(n): 257926032000
• Sum of proper divisors (its aliquot sum) s(n): 193528208160
• 64397823840 is an abundant number, because the sum of its proper divisors (193528208160) is greater than itself. Its abundance is 129130384320

Bases of 64397823840

• Binary: 111011111110011010001100111101100000₂
• Hexadecimal: 0xEFE68CF60
• Base-36: TL0SUW0

Squares and roots of 64397823840

• 64397823840 squared (64397823840²) is 4147079715327672345600
• 64397823840 cubed (64397823840³) is 267062908958108791589188399104000
• The square root of 64397823840 is 253767.2631369145
• The cube root of 64397823840 is 4008.2708830029

Scales and comparisons

• 64,397,823,840 seconds is equal to 2,047 years, 33 weeks, 6 days, 4 hours, 24 minutes.
• To count from 1 to 64,397,823,840 would take you about four thousand and ninety-five 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 64397823840 cubic inches would be around 334 feet tall.

Recreational maths with 64397823840

• 64397823840 backwards is 04832879346
• The number of decimal digits it has is: 11
• The sum of 64397823840's digits is 54
• More coming soon!