Unless she was born in February not April.
Pilkunnussija 'R Us, too! :)
I've recently (in November) turned 40 myself. In hex that is. It's more fun in binary to picture the carry propagation through 111111 to get 1000000. I have a son born in January of the year before you were born and a daughter in June the same year as you. At the time, still trying to figure out what causes babies.