820319175942813981

Names of 820319175942813981

• Cardinal: 820319175942813981 can be written as Eight hundred twenty quadrillion, three hundred nineteen trillion, one hundred seventy-five billion, nine hundred forty-two million, eight hundred thirteen thousand, nine hundred eighty-one.

Scientific notation

• Scientific notation: 8.20319175942813981 × 10¹⁷

Factors of 820319175942813981

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 429412558

Divisors of 820319175942813981

• Number of divisors d(n): 56
• Complete list of divisors:
  1 3 7 9 21 27 63 81 189 243 567 729 1701 5103 374681 1124043 2622767 3372129 7868301 10116387 23604903 30349161 70814709 91047483 212444127 273142449 429037867 637332381 1287113601 1911997143 3003265069 3861340803 9009795207 11584022409 27029385621 34752067227 81088156863 104256201681 243264470589 312768605043 729793411767 2189380235301 160752337045427 482257011136281 1125266359317989 1446771033408843 3375799077953967 4340313100226529 10127397233861901 13020939300679587 30382191701585703 39062817902038761 91146575104757109 117188453706116283 273439725314271327 820319175942813981
• Sum of all divisors σ(n): 1405622189908542144
• Sum of proper divisors (its aliquot sum) s(n): 585303013965728163
• 820319175942813981 is a deficient number, because the sum of its proper divisors (585303013965728163) is less than itself. Its deficiency is 235016161977085818

Bases of 820319175942813981

• Binary: 101101100010010110111111000110111100100000110011100100011101₂
• Hexadecimal: 0xB625BF1BC83391D
• Base-36: 68D6VMYMVKT9

Squares and roots of 820319175942813981

• 820319175942813981 squared (820319175942813981²) is 672923550419497400033669552769068361
• 820319175942813981 cubed (820319175942813981³) is 552012092352634742589925343495034648498817090095555141
• The square root of 820319175942813981 is 905714732.0999112361
• The cube root of 820319175942813981 is 936111.5878384109

Scales and comparisons

• 820,319,175,942,813,981 seconds is equal to 26,083,612,381 years, 8 weeks, 5 days, 12 hours, 46 minutes, 21 seconds.
• To count from 1 to 820,319,175,942,813,981 would take you about seventy-eight billion, two hundred fifty million, eight hundred thirty-seven thousand, one hundred forty-three 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 820319175942813981 cubic inches would be around 78009.3 feet tall.

Recreational maths with 820319175942813981

• 820319175942813981 backwards is 189318249571913028
• 820319175942813981 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 820319175942813981's digits is 81
• More coming soon!