6807985821

Names of 6807985821

• Cardinal: 6807985821 can be written as Six billion, eight hundred seven million, nine hundred eighty-five thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 6.807985821 × 10⁹

Factors of 6807985821

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 10097

Divisors of 6807985821

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 9 13 21 27 39 63 91 117 189 273 283 351 819 849 1981 2457 2547 3679 5943 7641 9791 11037 17829 25753 29373 33111 53487 68537 77259 88119 99333 127283 205611 231777 264357 381849 616833 695331 890981 1145547 1850499 2672943 2770853 3436641 8018829 8312559 19395971 24056487 24937677 36021089 58187913 74813031 108063267 174563739 252147623 324189801 523691217 756442869 972569403 2269328607 6807985821
• Sum of all divisors σ(n): 12458557440
• Sum of proper divisors (its aliquot sum) s(n): 5650571619
• 6807985821 is a deficient number, because the sum of its proper divisors (5650571619) is less than itself. Its deficiency is 1157414202

Bases of 6807985821

• Binary: 110010101110010011001111010011101₂
• Hexadecimal: 0x195C99E9D
• Base-36: 34LARH9

Squares and roots of 6807985821

• 6807985821 squared (6807985821²) is 46348670938937044041
• 6807985821 cubed (6807985821³) is 315541094574478152642780542661
• The square root of 6807985821 is 82510.5194566123
• The cube root of 6807985821 is 1895.2778229223

Scales and comparisons

• 6,807,985,821 seconds is equal to 216 years, 24 weeks, 4 days, 3 hours, 10 minutes, 21 seconds.
• To count from 1 to 6,807,985,821 would take you about four hundred thirty-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 6807985821 cubic inches would be around 157.9 feet tall.

Recreational maths with 6807985821

• 6807985821 backwards is 1285897086
• The number of decimal digits it has is: 10
• The sum of 6807985821's digits is 54
• More coming soon!