640008413555

Names of 640008413555

• Cardinal: 640008413555 can be written as Six hundred forty billion, eight million, four hundred thirteen thousand, five hundred fifty-five.

Scientific notation

• Scientific notation: 6.40008413555 × 10¹¹

Factors of 640008413555

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 843681

Divisors of 640008413555

• Number of divisors d(n): 48
• Complete list of divisors:
  1 5 7 19 35 49 95 133 163 245 665 815 931 1141 3097 4655 5705 7987 15485 21679 39935 108395 151753 758765 843487 4217435 5904409 16026253 29522045 41330863 80131265 112183771 137488381 206654315 560918855 687441905 785286397 962418667 2612279239 3926431985 4812093335 6736930669 13061396195 18285954673 33684653345 91429773365 128001682711 640008413555
• Sum of all divisors σ(n): 946191098880
• Sum of proper divisors (its aliquot sum) s(n): 306182685325
• 640008413555 is a deficient number, because the sum of its proper divisors (306182685325) is less than itself. Its deficiency is 333825728230

Bases of 640008413555

• Binary: 1001010100000011011110010110000101110011₂
• Hexadecimal: 0x9503796173
• Base-36: 860KHGFN

Squares and roots of 640008413555

• 640008413555 squared (640008413555²) is 409610769421187907738025
• 640008413555 cubed (640008413555³) is 262154338712297378434963088798928875
• The square root of 640008413555 is 800005.2584545929
• The cube root of 640008413555 is 8617.7765234095

Scales and comparisons

• 640,008,413,555 seconds is equal to 20,350 years, 14 weeks, 6 days, 18 hours, 52 minutes, 35 seconds.
• To count from 1 to 640,008,413,555 would take you about forty thousand, seven hundred 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 640008413555 cubic inches would be around 718.1 feet tall.

Recreational maths with 640008413555

• 640008413555 backwards is 555314800046
• The number of decimal digits it has is: 12
• The sum of 640008413555's digits is 41
• More coming soon!