378 = 2 x 33 x 7.
378 is the 27th triangular number. It is also a hexagonal number and the smallest Smith triangular number.
378 is the smallest three-digit number in which the sum of the digits is equal to the sum of the prime factors: 3 + 7 + 8 = 2 + 3 + 3 + 3 + 7 = 18.
378 is a cake number.
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