Example of a number that is an integer a whole number and a natural number?

469 and 28 but 369 is also are perfect.1+1+1=3 and 1+2=3 after 1+2+1=4 and 2+2=4 after 1+2+3=6 and 2+2+2=6 and 3+3=6 after 2+3+4=9 and 3+3+3=9.