640498956340686848

Names of 640498956340686848

• Cardinal: 640498956340686848 can be written as Six hundred forty quadrillion, four hundred ninety-eight trillion, nine hundred fifty-six billion, three hundred forty million, six hundred eighty-six thousand, eight hundred forty-eight.

Scientific notation

• Scientific notation: 6.40498956340686848 × 10¹⁷

Factors of 640498956340686848

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 246

Divisors of 640498956340686848

• Number of divisors d(n): 260
• Complete list of divisors:
  1 2 4 8 16 32 47 64 94 128 188 197 256 376 394 512 752 788 1024 1504 1576 2048 2209 3008 3152 4096 4418 6016 6304 8836 9259 12032 12608 17672 18518 24064 25216 35344 37036 38809 48128 50432 70688 74072 77618 96256 100864 103823 141376 148144 155236 192512 201728 207646 282752 296288 310472 403456 415292 435173 565504 592576 620944 806912 830584 870346 1131008 1185152 1241888 1661168 1740692 1824023 2262016 2370304 2483776 3322336 3481384 3648046 4524032 4740608 4967552 6644672 6962768 7296092 7645373 9048064 9481216 9935104 13289344 13925536 14592184 15290746 18962432 19870208 20453131 26578688 27851072 29184368 30581492 37924864 39740416 40906262 53157376 55702144 58368736 61162984 79480832 81812524 85729081 106314752 111404288 116737472 122325968 158961664 163625048 171458162 212629504 222808576 233474944 244651936 327250096 342916324 359332531 425259008 445617152 466949888 489303872 654500192 685832648 718665062 891234304 933899776 978607744 1309000384 1371665296 1437330124 1506138481 1782468608 1867799552 1957215488 2618000768 2743330592 2874660248 3012276962 3735599104 3914430976 4029266807 5236001536 5486661184 5749320496 6024553924 7471198208 7828861952 8058533614 10472003072 10973322368 11498640992 12049107848 15657723904 16117067228 16888628957 20944006144 21946644736 22997281984 24098215696 31315447808 32234134456 33777257914 41888012288 43893289472 45994563968 48196431392 64468268912 67554515828 70788508607 83776024576 87786578944 91989127936 96392862784 128936537824 135109031656 141577017214 175573157888 183978255872 192785725568 257873075648 270218063312 283154034428 351146315776 367956511744 385571451136 515746151296 540436126624 566308068856 735913023488 771142902272 793765560979 1031492302592 1080872253248 1132616137712 1471826046976 1542285804544 1587531121958 2062984605184 2161744506496 2265232275424 3084571609088 3175062243916 3327059904529 4125969210368 4323489012992 4530464550848 6169143218176 6350124487832 6654119809058 8251938420736 8646978025984 9060929101696 12700248975664 13308239618116 16503876841472 17293956051968 18121858203392 25400497951328 26616479236232 34587912103936 36243716406784 50800995902656 53232958472464 69175824207872 72487432813568 101601991805312 106465916944928 144974865627136 156371815512863 203203983610624 212931833889856 289949731254272 312743631025726 406407967221248 425863667779712 625487262051452 812815934442496 851727335559424 1250974524102904 1625631868884992 1703454671118848 2501949048205808 3251263737769984 3406909342237696 5003898096411616 6813818684475392 10007796192823232 13627637368950784 20015592385646464 40031184771292928 80062369542585856 160124739085171712 320249478170343424 640498956340686848
• Sum of all divisors σ(n): 1315362621616162080
• Sum of proper divisors (its aliquot sum) s(n): 674863665275475232
• 640498956340686848 is an abundant number, because the sum of its proper divisors (674863665275475232) is greater than itself. Its abundance is 34364708934788384

Bases of 640498956340686848

• Binary: 100011100011100000100110100001000011101100011111000000000000₂
• Hexadecimal: 0x8E3826843B1F000
• Base-36: 4V6LXIHW9728

Squares and roots of 640498956340686848

• 640498956340686848 squared (640498956340686848²) is 410238913073509077049928904400175104
• 640498956340686848 cubed (640498956340686848³) is 262757595673920317328962822902065377393380410829832192
• The square root of 640498956340686848 is 800311786.9559880773
• The cube root of 640498956340686848 is 861997.7696824699

Scales and comparisons

• 640,498,956,340,686,848 seconds is equal to 20,365,885,618 years, 14 weeks, 4 days, 5 hours, 54 minutes, 8 seconds.
• To count from 1 to 640,498,956,340,686,848 would take you about sixty-one billion, ninety-seven million, six hundred fifty-six thousand, eight hundred fifty-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 640498956340686848 cubic inches would be around 71833.1 feet tall.

Recreational maths with 640498956340686848

• 640498956340686848 backwards is 848686043659894046
• The number of decimal digits it has is: 18
• The sum of 640498956340686848's digits is 98
• More coming soon!