31119: Quasi Repdigit 311..119

First few terms (base 10): \[[31^*9_{10}]_n=\{39,319,3119,31119,311119,\ldots\}\]

General Formula:\[[31^*9_{10}]_n={280\cdot10^{n}+71\over9}\]

Equivalent Patterns: (none)

See Also: Factorization of 311..119 on stdkmd.net

Table

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