Haha! I was born in the same year! Oh, what a nice, small world this is... I didn't think to do those calculations, though... mostly because I'm a retard at math, but since I'm a January birthday, it ought to be relatively simple:Birthday is January 19th, 1986.
Now let's go with the wacky calculations!
a) 1 * 19 = 19 + 86 = 105. Marowak!! Now that's more like it!
b) 19 + 19 + 5 = 43 * 1986 = 85398 - 493^n = 109. Koffing.