In the first 2011 positive integers, how many are neither square nor cubic
Before 2011, there are 44 squares, from 1 square to 44 square, before 2011 there are 12 cubes, from 1 cube to 12 cube, among which there are both square and cubic numbers, including 1 square = 1 cube, 8 square is 4 cube, 27 square is 9 cube, so there are 44 + 12 - cubes before 2011