Can you tell me if I'm calculating the range scan time correctly for the 130 puzzle?

Time = (End Range - Start Range) / (Speed * 60 * 60 * 24 * 365)

Start Range = 200000000000000000000000000000000 (hex); 680564733841876926926749214863536422912 (decimal)
End Range =   400000000000000000000000000000000 (hex); 1361129467683753853853498429727072845824 (decimal)
Speed = 100 Ekeys/s

Time = (1361129467683753853853498429727072845824 - 680564733841876926926749214863536422912) / (100000000000000000000*60*60*24*365) = 215 805 661 416 years