when the number of spectator are 5.28 millions, which is the smallest number of the episode in series?
CREATE TABLE table_23117208_3 (
    no_in_series INTEGER,
    viewers__millions_ VARCHAR
)
SELECT MIN(no_in_series) FROM table_23117208_3 WHERE viewers__millions_ = "5.28"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: when the number of spectator are 5.28 millions, which is the smallest number of the episode in series? ### Input: CREATE TABLE table_23117208_3 (
    no_in_series INTEGER,
    viewers__millions_ VARCHAR
) ### Response: SELECT MIN(no_in_series) FROM table_23117208_3 WHERE viewers__millions_ = "5.28"