640128734385543

Names of 640128734385543

• Cardinal: 640128734385543 can be written as Six hundred forty trillion, one hundred twenty-eight billion, seven hundred thirty-four million, three hundred eighty-five thousand, five hundred forty-three.

Scientific notation

• Scientific notation: 6.40128734385543 × 10¹⁴

Factors of 640128734385543

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 158

Divisors of 640128734385543

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 9 13 27 39 41 81 101 117 123 169 243 303 351 369 507 533 729 909 1053 1107 1313 1521 1599 1681 2187 2727 3159 3321 3939 4141 4563 4797 5043 6929 8181 9477 9963 10201 11817 12423 13689 14391 15129 17069 20787 21853 24543 28431 29889 30603 35451 37269 41067 43173 45387 51207 53833 62361 65559 73629 89667 91809 106353 111807 123201 129519 132613 136161 153621 161499 169781 187083 196677 220887 275427 284089 319059 335421 369603 388557 397839 408483 418241 460863 484497 509343 561249 590031 699829 826281 852267 957177 1006263 1030301 1165671 1193517 1225449 1254723 1382589 1453491 1528029 1683747 1723969 1770093 2099487 2207153 2478843 2556801 2871531 3018789 3090903 3580551 3676347 3764169 4147767 4360473 4584087 5051241 5171907 5310279 5437133 6298461 6621459 7436529 7670403 9056367 9272709 10741653 11292507 12443301 13081419 13393913 13752261 15153723 15515721 15930837 16311399 17147881 18895383 19864377 22309587 23011209 27818127 28692989 32224959 33877521 37329903 39244257 40181739 41256783 42242341 46547163 47792511 48934197 51443643 56686149 59593131 69033627 70682729 83454381 86078967 96674877 101632563 117732771 120545217 123770349 126727023 139641489 146802591 154330929 170058447 174120869 178779393 207100881 212048187 222922453 250363143 258236901 290024631 304897689 361635651 371311047 380181069 418924467 440407773 462992787 510175341 522362607 536338179 549150433 621302643 636144561 668767359 751089429 774710703 914693067 1084906953 1140543207 1256773401 1321223319 1388978361 1530526023 1567087821 1609014537 1647451299 1731935981 1908433683 2006302077 2253268287 2324132109 2897991889 3254720859 3421629621 3770320203 3963669957 4166935083 4701263463 4827043611 4942353897 5195807943 5725301049 6018906231 6972396327 7138955629 8693975667 9764162577 10264888863 11891009871 12500805249 14103790389 14827061691 15587423829 17175903147 18056718693 20917188981 21416866887 22515167753 26081927001 29292487731 30794666589 37502415747 42311371167 44481185073 46762271487 51527709441 54170156079 62751566943 64250600661 67545503259 78245781003 92383999767 126934113501 133443555219 140286814461 154583128323 162510468237 192751801983 202636509777 234737343009 292697180789 380802340503 400330665657 420860443383 487531404711 578255405949 607909529331 704212029027 878091542367 1200991996971 1262581330149 1734766217847 1823728587993 2112636087081 2634274627101 3787743990447 5204298653541 5471185763979 6337908261243 7902823881303 15612895960623 16413557291937 23708471643909 49240671875811 71125414931727 213376244795181 640128734385543
• Sum of all divisors σ(n): 1076206725766080
• Sum of proper divisors (its aliquot sum) s(n): 436077991380537
• 640128734385543 is a deficient number, because the sum of its proper divisors (436077991380537) is less than itself. Its deficiency is 204050743005006

Bases of 640128734385543

• Binary: 10010001100011000110010101110100101101010110000111₂
• Hexadecimal: 0x2463195D2D587
• Base-36: 6AWN2WTHFR

Squares and roots of 640128734385543

• 640128734385543 squared (640128734385543²) is 409764796586037061133767404849
• 640128734385543 cubed (640128734385543³) is 262302220634369374990809620177151917733698007
• The square root of 640128734385543 is 25300765.4901100375
• The cube root of 640128734385543 is 86183.1653352757

Scales and comparisons

• 640,128,734,385,543 seconds is equal to 20,354,113 years, 36 weeks, 4 days, 17 hours, 19 minutes, 3 seconds.
• To count from 1 to 640,128,734,385,543 would take you about fifty million, eight hundred eighty-five thousand, two hundred eighty-four 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 640128734385543 cubic inches would be around 7181.9 feet tall.

Recreational maths with 640128734385543

• 640128734385543 backwards is 345583437821046
• The number of decimal digits it has is: 15
• The sum of 640128734385543's digits is 63
• More coming soon!