Mathematics, 01.04.2021 19:20 pillgiing
Some perfect squares (such as 121) have a digit sum $(1 + 2 + 1 = 4)$ that is equal to the square of the digit sum of their square root $(\sqrt{121}=11$, and $(1 + 1)^2 = 4)$. What is the smallest perfect square greater than 100 that does not have this property?
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