edited..thanks for your help
The answer should be:tinhnho said:here what i have for Hex 30500000 => Dec = 1052672
(16^3 + 16^5= 1052672)
my result seem doesn't right !
I confuse, would you give a example by number instead by words? Don't need to be exacted those hex number above, any number would fine with me, i will follow from there and try to undestand. Again thanks for your explaination.