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GAIC Math 2024 Problem 40

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Let nn be an integer, and let p(n)p(n) denote the product of its digits (in decimal representation). Then the sum of all nn such that 10 p(n)=n2+4n−200510\:p(n)=n^{2}+4n-2005 is \underline{\hspace{2cm}}.

Dataset text MathOdyssey. Open licence.

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