316 = 22 x 79.
316 is a number that cannot be written as a sum of three squares.
316 is a centered triangular number. It is also a centered heptagonal number.
316 has a digit product that is the digit sum of (31)6 = 729: 3 x 1 x 6 = 18; and 7 + 2 + 9 = 18.
316 is the telephone area code for the city of Wichita, Kansas.
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