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Omni-MATH / For each positive integer n, let s(n) be the sum of the squares of the digits of n. For example, s(15)=1²+5²=26. Determine all integers n≥1 such that s(n)=n. · Discussion

Discussing For each positive integer n, let s(n) be the sum of the squares of the digits of n. For example, s(15)=1²+5²=26. Determine all integers n≥1 such that s(n)=n. · Omni-MATH

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