640448647116878187009

Names of 640448647116878187009

• Cardinal: 640448647116878187009 can be written as Six hundred forty quintillion, four hundred forty-eight quadrillion, six hundred forty-seven trillion, one hundred sixteen billion, eight hundred seventy-eight million, one hundred eighty-seven thousand and nine.

Scientific notation

• Scientific notation: 6.40448647116878187009 × 10²⁰

Factors of 640448647116878187009

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 762197

Divisors of 640448647116878187009

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 9 47 113 141 339 423 541 1017 1623 3037 4869 5311 9111 10909 15933 25427 27333 32727 47799 61133 76281 98181 142739 183399 228843 343181 428217 512723 550197 747547 1029543 1232717 1284651 1538169 1643017 2242641 2873251 3088629 3698151 4614507 4929051 5901769 6727923 8619753 11094453 14787153 16129507 17705307 25859259 33130633 35134709 48388521 53115921 57937699 77221799 84472811 99391899 105404127 145165563 173813097 185660921 231665397 253418433 277383143 298175697 316212381 404422927 521439291 556982763 666899897 694996191 760255299 832149429 1213268781 1557139751 1670948289 2000699691 2270300239 2496448287 3639806343 3743761529 3970222117 4671419253 6002099073 6810900717 8154990223 8726063287 11231284587 11910666351 14014257759 17923672453 19007877569 20432702151 24464970669 26178189861 31344295159 33693853761 35731999053 45699790751 53771017359 57023632707 73394912007 78534569583 94032885477 106704111233 137099372253 161313052077 171070898121 175956791863 256543927007 282098656431 320112333699 383284540481 411298116759 527870375589 769631781021 842412605291 921513895199 960337001097 1149853621443 1228232429299 1583611126767 2025374987189 2147890165297 2308895343063 2527237815873 2764541685597 3449560864329 3684697287897 4411849710643 6076124961567 6443670495891 7581713447619 8293625056791 11054091863691 12057564569329 13235549131929 18228374884701 19331011487673 24766705307251 36172693707987 39706647395787 43311153074353 57726924177053 74300115921753 95192624397883 108518081123961 129933459223059 138790264510787 173180772531159 207356936400221 222900347765259 285577873193649 389800377669177 416370793532361 498539017302659 519542317593477 622070809200663 856733619580947 1164035149440797 1249112380597083 1495617051907977 1866212427601989 2798637699719363 3492105448322391 4486851155723931 6523142432006989 8395913099158089 10476316344967173 13398787571222791 19569427296020967 23431333813224973 25187739297474267 40196362713668373 58708281888062901 70294001439674919 120589088141005119 131535971886810061 210882004319024757 394607915660430183 629743015847471177 1183823746981290549 1514062995548175383 1889229047542413531 4542188986644526149 5667687142627240593 13626566959933578447 71160960790764243001 213482882372292729003 640448647116878187009
• Sum of all divisors σ(n): 955301218246897966080
• Sum of proper divisors (its aliquot sum) s(n): 314852571130019779071
• 640448647116878187009 is a deficient number, because the sum of its proper divisors (314852571130019779071) is less than itself. Its deficiency is 325596075986858407938

Bases of 640448647116878187009

• Binary: 1000101011100000000010101010110100111101111001000001110000101000000001₂
• Hexadecimal: 0x22B802AB4F79070A01
• Base-36: 3R5TTTT2R5FRI9

Squares and roots of 640448647116878187009

• 640448647116878187009 squared (640448647116878187009²) is 410174469593839562481114564244510776366081
• 640448647116878187009 cubed (640448647116878187009³) is 262695684133257635689607950380401951971099628464237592562441729
• The square root of 640448647116878187009 is 25307086895.1145419465
• The cube root of 640448647116878187009 is 8619752.0000000011

Scales and comparisons

• 640,448,647,116,878,187,009 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 640,448,647,116,878,187,009 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 640448647116878187009 cubic inches would be around 718312.7 feet tall.

Recreational maths with 640448647116878187009

• 640448647116878187009 backwards is 900781878611746844046
• The number of decimal digits it has is: 21
• The sum of 640448647116878187009's digits is 99
• More coming soon!