820028075

Names of 820028075

• Cardinal: 820028075 can be written as Eight hundred twenty million, twenty-eight thousand and seventy-five.

Scientific notation

• Scientific notation: 8.20028075 × 10⁸

Factors of 820028075

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 7379

Divisors of 820028075

• Number of divisors d(n): 18
• Complete list of divisors:
  1 5 25 67 335 1675 4489 7307 22445 36535 112225 182675 489569 2447845 12239225 32801123 164005615 820028075
• Sum of all divisors σ(n): 1032379236
• Sum of proper divisors (its aliquot sum) s(n): 212351161
• 820028075 is a deficient number, because the sum of its proper divisors (212351161) is less than itself. Its deficiency is 607676914

Bases of 820028075

• Binary: 110000111000001010001010101011₂
• Hexadecimal: 0x30E0A2AB
• Base-36: DK81PN

Squares and roots of 820028075

• 820028075 squared (820028075²) is 672446043788205625
• 820028075 cubed (820028075³) is 551424634829007966372921875
• The square root of 820028075 is 28636.1323331207
• The cube root of 820028075 is 936.0008442751

Scales and comparisons

• 820,028,075 seconds is equal to 26 years, 3 weeks, 6 days, 1 hour, 34 minutes, 35 seconds.
• To count from 1 to 820,028,075 would take you about thirty-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 820028075 cubic inches would be around 78 feet tall.

Recreational maths with 820028075

• 820028075 backwards is 570820028
• The number of decimal digits it has is: 9
• The sum of 820028075's digits is 32
• More coming soon!