640990477923441350271876

Names of 640990477923441350271876

• Cardinal: 640990477923441350271876 can be written as Six hundred forty sextillion, nine hundred ninety quintillion, four hundred seventy-seven quadrillion, nine hundred twenty-three trillion, four hundred forty-one billion, three hundred fifty million, two hundred seventy-one thousand, eight hundred seventy-six.

Scientific notation

• Scientific notation: 6.40990477923441350271876 × 10²³

Factors of 640990477923441350271876

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 194230901

Divisors of 640990477923441350271876

• Number of divisors d(n): 135
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 81 108 162 229 324 458 687 916 1374 2061 2748 4122 6183 8244 12366 18549 24732 37098 52441 74196 104882 157323 209764 314646 471969 629292 943938 1415907 1887876 2831814 4247721 5663628 8495442 16990884 194230667 388461334 582692001 776922668 1165384002 1748076003 2330768004 3496152006 5244228009 6992304012 10488456018 15732684027 20976912036 31465368054 44478822743 62930736108 88957645486 133436468229 177915290972 266872936458 400309404687 533745872916 800618809374 1200928214061 1601237618748 2401856428122 3602784642183 4803712856244 7205569284366 10185650408147 14411138568732 20371300816294 30556951224441 40742601632588 61113902448882 91670853673323 122227804897764 183341707346646 275012561019969 366683414693292 550025122039938 825037683059907 1100050244079876 1650075366119814 3300150732239628 37725552003264889 75451104006529778 113176656009794667 150902208013059556 226353312019589334 339529968029384001 452706624039178668 679059936058768002 1018589904088152003 1358119872117536004 2037179808176304006 3055769712264456009 4074359616352608012 6111539424528912018 8639151408747659581 12223078849057824036 17278302817495319162 25917454226242978743 34556605634990638324 51834908452485957486 77752362678728936229 103669816904971914972 155504725357457872458 233257088036186808687 311009450714915744916 466514176072373617374 699771264108560426061 933028352144747234748 1399542528217120852122 1978365672603214044049 2799085056434241704244 3956731345206428088098 5935097017809642132147 7913462690412856176196 11870194035619284264294 17805291053428926396441 23740388071238568528588 35610582106857852792882 53415873160286779189323 71221164213715705585764 106831746320573558378646 160247619480860337567969 213663492641147116757292 320495238961720675135938 640990477923441350271876
• Sum of all divisors σ(n): 1683025048145762344886709
• Sum of proper divisors (its aliquot sum) s(n): 1042034570222320994614833
• 640990477923441350271876 is an abundant number, because the sum of its proper divisors (1042034570222320994614833) is greater than itself. Its abundance is 401044092298879644342957

Bases of 640990477923441350271876

• Binary: 10000111101111000010100111010110111001100100010001011100001110111110001110000100₂
• Hexadecimal: 0x87BC29D6E6445C3BE384
• Base-36: 2WDO95B2LX4XD090

Squares and roots of 640990477923441350271876

• 640990477923441350271876 squared (640990477923441350271876²) is 410868792788521753037331681241649581019116559376
• 640990477923441350271876 cubed (640990477923441350271876³) is 263362983853341951401483589203629225456629823005503155238681931296909376
• 640990477923441350271876 is a perfect square number. Its square root is 800618809374
• The cube root of 640990477923441350271876 is 86221821.3535630981

Scales and comparisons

• 640,990,477,923,441,350,271,876 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 640,990,477,923,441,350,271,876 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 640990477923441350271876 cubic inches would be around 7185151.8 feet tall.

Recreational maths with 640990477923441350271876

• 640990477923441350271876 backwards is 678172053144329774099046
• 640990477923441350271876 is a Harshad number.
• The number of decimal digits it has is: 24
• The sum of 640990477923441350271876's digits is 108
• More coming soon!