In this task you will be given a list of numbers. You should remove any number that is not an integer (whole number). If every number is not an whole number then an empty list ("[]") should be returned. Otherwise, answer with the list of whole numbers separated by comma inside brackets.
[-13, 0.423, -13.98, 11.41, -9.67, 44, 3.389, 0.333, 6.2]