If the letters of word SACHIN are arranged in all possible ways and these words are written out as in dictionary, then the word SACHIN appears at serial number

Step-by-step solution

Alphabetical order is A, C, H, I, N, S No. of words starting with A-5 ! No. of words starting with C-5 ! No. of words starting with H -5 ! No. of words starting with I -5 ! No. of words starting with N-5 ! SACHIN -1601