820395743049

Names of 820395743049

• Cardinal: 820395743049 can be written as Eight hundred twenty billion, three hundred ninety-five million, seven hundred forty-three thousand and forty-nine.

Scientific notation

• Scientific notation: 8.20395743049 × 10¹¹

Factors of 820395743049

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 391

Divisors of 820395743049

• Number of divisors d(n): 45
• Complete list of divisors:
  1 3 9 29 87 261 359 841 1077 2523 3231 7569 10411 24389 31233 73167 93699 128881 219501 301919 386643 707281 905757 1159929 2121843 2717271 3737549 6365529 8755651 11212647 26266953 33637941 78800859 108388921 253913879 325166763 761741637 975500289 2285224911 3143278709 9429836127 28289508381 91155082561 273465247683 820395743049
• Sum of all divisors σ(n): 1230766307953
• Sum of proper divisors (its aliquot sum) s(n): 410370564904
• 820395743049 is a deficient number, because the sum of its proper divisors (410370564904) is less than itself. Its deficiency is 410025178145

Bases of 820395743049

• Binary: 1011111100000011011001011001011101001001₂
• Hexadecimal: 0xBF03659749
• Base-36: AGVUFYO9

Squares and roots of 820395743049

• 820395743049 squared (820395743049²) is 673049175212920831816401
• 820395743049 cubed (820395743049³) is 552166678207320778603627458739946649
• 820395743049 is a perfect square number. Its square root is 905757
• The cube root of 820395743049 is 9361.4071191905

Scales and comparisons

• 820,395,743,049 seconds is equal to 26,086 years, 2 weeks, 3 days, 2 hours, 24 minutes, 9 seconds.
• To count from 1 to 820,395,743,049 would take you about fifty-two thousand, one hundred seventy-two 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 820395743049 cubic inches would be around 780.1 feet tall.

Recreational maths with 820395743049

• 820395743049 backwards is 940347593028
• The number of decimal digits it has is: 12
• The sum of 820395743049's digits is 54
• More coming soon!