Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_28013 ( "Episode #" real, "The W\u00f8rd" text, "Guest" text, "Introductory phrase" text, "Original airdate" text, "Production code" real )

### Question ###
How many production codes were there for the episode that aired on November 15?

### Accurate SQL ###

SELECT COUNT("Production code") FROM table_28013 WHERE "Original airdate" = 'November 15'