Fatto matematico: 1413 is the smallest number that can not be formed using the digits 0-7 at most once, together with the symbols + – × and ÷.
Trivia: 1413 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: November 13th is the day in 1986 that the Compact of Free Association becomes law, granting the Federated States of Micronesia, the Marshall Islands independence from the United States.