APPLE converts to 11616125 using the pattern: first letter position (A=1) as prefix, then each letter's position repeated twice (P=16, P=16, L=12, E=5). For ORANGE: O=15, so prefix is 15, then R=18 (18), A=1 (11), N=14 (14), G=7 (7), E=5 (5). This gives 151811475.