You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[3-(3H-benzimidazole-5-carbonyl)-4-tert-butyl-1,2,4,5-tetrahydro-3-benzazepin-7-yl]methanesulfonamide by IUPAC nomenclature, provide its molecular formula.
user
C23H28N4O3S
assistant