how to convert hex to ip

I have an ip of 144.162.57.93. This is represent in binary as the following: 10010000.10100010.00111001.01011101

After doing the math I come up with a hexadecimal value of D0.E2.B5.C8. This is where I get stuck. I want to be able to convert it back to the same ip address. I have looked at several converter only and none of them come up with the same answer.