820096785

Names of 820096785

• Cardinal: 820096785 can be written as Eight hundred twenty million, ninety-six thousand, seven hundred eighty-five.

Scientific notation

• Scientific notation: 8.20096785 × 10⁸

Factors of 820096785

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1709

Divisors of 820096785

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 9 15 27 31 45 93 127 135 155 279 381 465 635 837 1143 1395 1543 1905 3429 3937 4185 4629 5715 7715 11811 13887 17145 19685 23145 35433 41661 47833 59055 69435 106299 143499 177165 195961 208305 239165 430497 531495 587883 717495 979805 1291491 1763649 2152485 2939415 5290947 6074791 6457455 8818245 18224373 26454735 30373955 54673119 91121865 164019357 273365595 820096785
• Sum of all divisors σ(n): 1517813760
• Sum of proper divisors (its aliquot sum) s(n): 697716975
• 820096785 is a deficient number, because the sum of its proper divisors (697716975) is less than itself. Its deficiency is 122379810

Bases of 820096785

• Binary: 110000111000011010111100010001₂
• Hexadecimal: 0x30E1AF11
• Base-36: DK9IQ9

Squares and roots of 820096785

• 820096785 squared (820096785²) is 672558736767336225
• 820096785 cubed (820096785³) is 551563257746553731136536625
• The square root of 820096785 is 28637.3320160939
• The cube root of 820096785 is 936.0269859905

Scales and comparisons

• 820,096,785 seconds is equal to 26 years, 3 weeks, 6 days, 20 hours, 39 minutes, 45 seconds.
• To count from 1 to 820,096,785 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 820096785 cubic inches would be around 78 feet tall.

Recreational maths with 820096785

• 820096785 backwards is 587690028
• 820096785 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 820096785's digits is 45
• More coming soon!