64481857920

Names of 64481857920

• Cardinal: 64481857920 can be written as Sixty-four billion, four hundred eighty-one million, eight hundred fifty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 6.448185792 × 10¹⁰

Factors of 64481857920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 2036

Divisors of 64481857920

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 27 30 32 36 40 45 46 48 54 60 64 69 72 80 81 90 92 96 108 115 120 128 135 138 144 160 162 180 184 192 207 216 230 240 243 270 276 288 320 324 345 360 368 384 405 414 432 460 480 486 540 552 576 621 640 648 690 720 729 736 810 828 864 920 960 972 1035 1080 1104 1152 1215 1242 1296 1380 1440 1458 1472 1620 1656 1728 1840 1863 1920 1944 2003 2070 2160 2187 2208 2430 2484 2592 2760 2880 2916 2944 3105 3240 3312 3456 3645 3680 3726 3888 4006 4140 4320 4374 4416 4860 4968 5184 5520 5589 5760 5832 6009 6210 6480 6624 7290 7360 7452 7776 8012 8280 8640 8748 8832 9315 9720 9936 10015 10368 10935 11040 11178 11664 12018 12420 12960 13248 14580 14720 14904 15552 16024 16560 16767 17280 17496 18027 18630 19440 19872 20030 21870 22080 22356 23328 24036 24840 25920 26496 27945 29160 29808 30045 31104 32048 33120 33534 34992 36054 37260 38880 39744 40060 43740 44160 44712 46069 46656 48072 49680 50301 51840 54081 55890 58320 59616 60090 64096 66240 67068 69984 72108 74520 77760 79488 80120 83835 87480 89424 90135 92138 93312 96144 99360 100602 108162 111780 116640 119232 120180 128192 132480 134136 138207 139968 144216 149040 155520 160240 162243 167670 174960 178848 180270 184276 192288 198720 201204 216324 223560 230345 233280 238464 240360 251505 256384 268272 270405 276414 279936 288432 298080 320480 324486 335340 349920 357696 360540 368552 384576 397440 402408 414621 432648 447120 460690 466560 480720 486729 503010 536544 540810 552828 576864 596160 640960 648972 670680 691035 699840 715392 721080 737104 769152 804816 811215 829242 865296 894240 921380 961440 973458 1006020 1073088 1081620 1105656 1153728 1192320 1243863 1281920 1297944 1341360 1382070 1399680 1442160 1460187 1474208 1609632 1622430 1658484 1730592 1788480 1842760 1922880 1946916 2012040 2073105 2146176 2163240 2211312 2307456 2433645 2487726 2595888 2682720 2764140 2884320 2920374 2948416 3219264 3244860 3316968 3461184 3576960 3685520 3731589 3845760 3893832 4024080 4146210 4326480 4380561 4422624 4867290 4975452 5191776 5365440 5528280 5768640 5840748 5896832 6219315 6438528 6489720 6633936 6922368 7300935 7371040 7463178 7787664 8048160 8292420 8652960 8761122 8845248 9734580 9950904 10383552 10730880 11056560 11194767 11537280 11681496 12438630 12979440 13267872 14601870 14742080 14926356 15575328 16096320 16584840 17305920 17522244 17690496 18657945 19469160 19901808 20767104 21902805 22113120 22389534 23362992 24877260 25958880 26535744 29203740 29484160 29852712 31150656 32192640 33169680 33584301 34611840 35044488 37315890 38938320 39803616 43805610 44226240 44779068 46725984 49754520 51917760 53071488 55973835 58407480 59705424 62301312 66339360 67168602 70088976 74631780 77876640 79607232 87611220 88452480 89558136 93451968 99509040 100752903 103835520 111947670 116814960 119410848 132678720 134337204 140177952 149263560 155753280 159214464 167921505 175222440 179116272 186903936 199018080 201505806 223895340 233629920 238821696 265357440 268674408 280355904 298527120 311506560 335843010 350444880 358232544 398036160 403011612 447790680 467259840 477643392 503764515 537348816 560711808 597054240 671686020 700889760 716465088 796072320 806023224 895581360 934519680 1007529030 1074697632 1194108480 1343372040 1401779520 1432930176 1612046448 1791162720 2015058060 2149395264 2388216960 2686744080 2803559040 3224092896 3582325440 4030116120 4298790528 5373488160 6448185792 7164650880 8060232240 10746976320 12896371584 16120464480 21493952640 32240928960 64481857920
• Sum of all divisors σ(n): 241364966400
• Sum of proper divisors (its aliquot sum) s(n): 176883108480
• 64481857920 is an abundant number, because the sum of its proper divisors (176883108480) is greater than itself. Its abundance is 112401250560

Bases of 64481857920

• Binary: 111100000011011010110001000110000000₂
• Hexadecimal: 0xF036B1180
• Base-36: TMEU000

Squares and roots of 64481857920

• 64481857920 squared (64481857920²) is 4157910000815066726400
• 64481857920 cubed (64481857920³) is 268109761916704216847044313088000
• The square root of 64481857920 is 253932.7822869667
• The cube root of 64481857920 is 4010.0136176137

Scales and comparisons

• 64,481,857,920 seconds is equal to 2,050 years, 16 weeks, 5 days, 19 hours, 12 minutes.
• To count from 1 to 64,481,857,920 would take you about four thousand, one hundred 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 64481857920 cubic inches would be around 334.2 feet tall.

Recreational maths with 64481857920

• 64481857920 backwards is 02975818446
• 64481857920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 64481857920's digits is 54
• More coming soon!