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MathNet 2023-part-05 — 191 problems (EN–VI) Question 15

Math Olympiad Vault · MathNet 2023-part-05 — 191 problems (EN–VI)

Question 15

Find the natural numbers $m, n$ so that
$$
n \cdot (n + 1) = 3^m + s(n) + 1182,
$$
where $s(n)$ represents the sum of the digits of the positive integer $n$.