820897982394950309521

Names of 820897982394950309521

• Cardinal: 820897982394950309521 can be written as Eight hundred twenty quintillion, eight hundred ninety-seven quadrillion, nine hundred eighty-two trillion, three hundred ninety-four billion, nine hundred fifty million, three hundred nine thousand, five hundred twenty-one.

Scientific notation

• Scientific notation: 8.20897982394950309521 × 10²⁰

Factors of 820897982394950309521

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 24188

Divisors of 820897982394950309521

• Number of divisors d(n): 15
• Complete list of divisors:
  1 7 49 343 2401 24181 169267 1184869 8294083 58058581 584720761 4093045327 28651317289 200559221023 1403914547161
• Sum of all divisors σ(n): 820897982628906347703
• Sum of proper divisors (its aliquot sum) s(n): 233956038182
• 820897982394950309521 is a deficient number, because the sum of its proper divisors (233956038182) is less than itself. Its deficiency is 820897982160994271339

Bases of 820897982394950309521

• Binary: 1011001000000000111111011111011010111100101101111000010101011010010001₂
• Hexadecimal: 0x2C803F7DAF2DE15691
• Base-36: 4T8SQ8LBEZEMXD

Squares and roots of 820897982394950309521

• 820897982394950309521 squared (820897982394950309521²) is 673873497500100148308114320234733703249441
• 820897982394950309521 cubed (820897982394950309521³) is 553181394487260802959695133008782418557413549001439286420227761
• 820897982394950309521 is a perfect square number. Its square root is 28651317289
• The cube root of 820897982394950309521 is 9363317.0542895179

Scales and comparisons

• 820,897,982,394,950,309,521 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 820,897,982,394,950,309,521 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 820897982394950309521 cubic inches would be around 780276.4 feet tall.

Recreational maths with 820897982394950309521

• 820897982394950309521 backwards is 125903059493289798028
• The number of decimal digits it has is: 21
• The sum of 820897982394950309521's digits is 103
• More coming soon!