644348985696

Names of 644348985696

• Cardinal: 644348985696 can be written as Six hundred forty-four billion, three hundred forty-eight million, nine hundred eighty-five thousand, six hundred ninety-six.

Scientific notation

• Scientific notation: 6.44348985696 × 10¹¹

Factors of 644348985696

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2473

Divisors of 644348985696

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 53 54 72 78 96 104 106 108 117 144 156 159 208 212 216 234 288 312 318 351 416 424 432 468 477 601 624 636 689 702 848 864 936 954 1202 1248 1272 1378 1404 1431 1696 1801 1803 1872 1908 2067 2404 2544 2756 2808 2862 3602 3606 3744 3816 4134 4808 5088 5403 5409 5512 5616 5724 6201 7204 7212 7632 7813 8268 9616 10806 10818 11024 11232 11448 12402 14408 14424 15264 15626 16209 16227 16536 18603 19232 21612 21636 22048 22896 23413 23439 24804 28816 28848 31252 31853 32418 32454 33072 37206 43224 43272 45792 46826 46878 48627 49608 57632 57696 62504 63706 64836 64908 66144 70239 70317 74412 86448 86544 93652 93756 95453 95559 97254 99216 125008 127412 129672 129816 140478 140634 148824 172896 173088 187304 187512 190906 191118 194508 198432 210717 210951 250016 254824 259344 259632 280956 281268 286359 286677 297648 374608 375024 381812 382236 389016 414089 421434 421902 509648 518688 519264 561912 562536 572718 573354 595296 632151 749216 750048 763624 764472 778032 828178 842868 843804 859077 860031 1019296 1082401 1123824 1125072 1145436 1146708 1240889 1242267 1264302 1527248 1528944 1556064 1656356 1685736 1687608 1718154 1720062 2164802 2247648 2250144 2290872 2293416 2481778 2484534 2528604 2577231 3054496 3057888 3247203 3312712 3371472 3375216 3436308 3440124 3722667 3726801 4329604 4581744 4586832 4963556 4969068 5057208 5154462 6494406 6625424 6742944 6750432 6872616 6880248 7445334 7453602 8659208 9163488 9173664 9741609 9927112 9938136 10114416 10308924 11168001 11180403 12988812 13250848 13745232 13760496 14071213 14890668 14907204 17318416 19483218 19854224 19876272 20228832 20617848 22336002 22360806 25977624 27490464 27520992 28142426 29224827 29781336 29814408 33504003 34636832 38966436 39708448 39752544 41235696 42213639 44672004 44721612 51955248 56284852 57367253 58449654 59562672 59628816 67008006 77932872 82471392 84427278 89344008 89443224 103910496 112569704 114734506 116899308 119125344 119257632 126640917 134016012 155865744 168854556 172101759 178688016 178886448 225139408 229469012 233798616 253281834 268032024 311731488 337709112 344203518 357376032 357772896 379922751 450278816 458938024 467597232 506563668 516305277 536064048 675418224 688407036 745774289 759845502 917876048 935194464 1013127336 1032610554 1072128096 1350836448 1376814072 1491548578 1519691004 1548915831 1835752096 2026254672 2065221108 2237322867 2753628144 2983097156 3039382008 3097831662 4052509344 4130442216 4474645734 5507256288 5966194312 6078764016 6195663324 6711968601 8260884432 8949291468 11932388624 12157528032 12391326648 13423937202 16521768864 17898582936 20135905803 23864777248 24782653296 26847874404 35797165872 40271811606 49565306592 53695748808 71594331744 80543623212 107391497616 161087246424 214782995232 322174492848 644348985696
• Sum of all divisors σ(n): 2066681796480
• Sum of proper divisors (its aliquot sum) s(n): 1422332810784
• 644348985696 is an abundant number, because the sum of its proper divisors (1422332810784) is greater than itself. Its abundance is 777983825088

Bases of 644348985696

• Binary: 1001011000000110001100010100000101100000₂
• Hexadecimal: 0x9606314160
• Base-36: 880CQZC0

Squares and roots of 644348985696

• 644348985696 squared (644348985696²) is 415185615367464012604416
• 644348985696 cubed (644348985696³) is 267524430137595026841437608890433536
• The square root of 644348985696 is 802713.5140858161
• The cube root of 644348985696 is 8637.2147233485

Scales and comparisons

• 644,348,985,696 seconds is equal to 20,488 years, 15 weeks, 5 days, 21 hours, 21 minutes, 36 seconds.
• To count from 1 to 644,348,985,696 would take you about forty thousand, nine hundred seventy-six 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 644348985696 cubic inches would be around 719.8 feet tall.

Recreational maths with 644348985696

• 644348985696 backwards is 696589843446
• 644348985696 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 644348985696's digits is 72
• More coming soon!