8402072085

Names of 8402072085

• Cardinal: 8402072085 can be written as Eight billion, four hundred two million, seventy-two thousand and eighty-five.

Scientific notation

• Scientific notation: 8.402072085 × 10⁹

Factors of 8402072085

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2951

Divisors of 8402072085

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 5 9 11 15 27 33 45 55 81 99 135 165 297 405 495 891 953 1485 1979 2859 4455 4765 5937 8577 9895 10483 14295 17811 21769 25731 29685 31449 42885 52415 53433 65307 77193 89055 94347 108845 128655 157245 160299 195921 267165 283041 326535 385965 471735 587763 801495 849123 979605 1415205 1763289 1885987 2938815 4245615 5657961 8816445 9429935 16973883 20745857 28289805 50921649 62237571 84869415 103729285 152764947 186712713 254608245 311187855 560138139 763824735 933563565 1680414417 2800690695 8402072085
• Sum of all divisors σ(n): 16456271040
• Sum of proper divisors (its aliquot sum) s(n): 8054198955
• 8402072085 is a deficient number, because the sum of its proper divisors (8054198955) is less than itself. Its deficiency is 347873130

Bases of 8402072085

• Binary: 111110100110011010111001000010101₂
• Hexadecimal: 0x1F4CD7215
• Base-36: 3UYDKB9

Squares and roots of 8402072085

• 8402072085 squared (8402072085²) is 70594815321536247225
• 8402072085 cubed (8402072085³) is 593142727158810002124831214125
• The square root of 8402072085 is 91662.8173525121
• The cube root of 8402072085 is 2032.9598474787

Scales and comparisons

• 8,402,072,085 seconds is equal to 267 years, 8 weeks, 2 days, 4 hours, 54 minutes, 45 seconds.
• To count from 1 to 8,402,072,085 would take you about five hundred thirty-four 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 8402072085 cubic inches would be around 169.4 feet tall.

Recreational maths with 8402072085

• 8402072085 backwards is 5802702048
• The number of decimal digits it has is: 10
• The sum of 8402072085's digits is 36
• More coming soon!