820121190

Names of 820121190

• Cardinal: 820121190 can be written as Eight hundred twenty million, one hundred twenty-one thousand, one hundred ninety.

Scientific notation

• Scientific notation: 8.2012119 × 10⁸

Factors of 820121190

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 10157

Divisors of 820121190

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 401 802 1203 2005 2406 2807 4010 5614 6015 8421 9739 12030 14035 16842 19478 28070 29217 42105 48695 58434 68173 84210 97390 136346 146085 204519 292170 340865 409038 681730 1022595 2045190 3905339 7810678 11716017 19526695 23432034 27337373 39053390 54674746 58580085 82012119 117160170 136686865 164024238 273373730 410060595 820121190
• Sum of all divisors σ(n): 2255316480
• Sum of proper divisors (its aliquot sum) s(n): 1435195290
• 820121190 is an abundant number, because the sum of its proper divisors (1435195290) is greater than itself. Its abundance is 615074100

Bases of 820121190

• Binary: 110000111000100000111001100110₂
• Hexadecimal: 0x30E20E66
• Base-36: DKA1K6

Squares and roots of 820121190

• 820121190 squared (820121190²) is 672598766287016100
• 820121190 cubed (820121190³) is 551612500599839525481159000
• The square root of 820121190 is 28637.7581175623
• The cube root of 820121190 is 936.0362708751

Scales and comparisons

• 820,121,190 seconds is equal to 26 years, 4 weeks, 3 hours, 26 minutes, 30 seconds.
• To count from 1 to 820,121,190 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 820121190 cubic inches would be around 78 feet tall.

Recreational maths with 820121190

• 820121190 backwards is 091121028
• The number of decimal digits it has is: 9
• The sum of 820121190's digits is 24
• More coming soon!