$33 \cdot 10$ number $2^{1984}$ has the following properties:
(A) It is a 597-digit number.
(B) It is divisible by 1984.
(C) The last digit is 4.
(D) The last digit is 6.
(E) It is less than $3^{1200}$.
(Chongqing, Sichuan Province, China Junior High School Mathematics Competition, 1984)