SELECT "Affiliation" FROM table_2364 WHERE "Mascot" = 'Hilltoppers'
what is the affiliation of the hilltoppers mascot?
CREATE TABLE table_2364 (
    "Institution" text,
    "Location" text,
    "Year Joined" real,
    "Affiliation" text,
    "Enrollment" real,
    "Mascot" text,
    "Colors" text
)