The number of positive integers formed with atmost 10 digits using the digits 0,1,2 is:
The number of positive integers greater than 6000 but not more than 7000, divisible by 5, using the digits 0,1,2,........9, if any digit can be used any numbers of times, is
The number of seven digit integers with sum of the digits equal to 10 and formed by using the digits 1,2 and 3 only is :