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Problem 655


Problem 655


Divisible Palindromes

The numbers $545$, $5\ 995$ and $15\ 151$ are the three smallest palindromes divisible by $109$. There are nine palindromes less than $100\ 000$ which are divisible by $109$.

How many palindromes less than $10^{32}$ are divisible by $10\ 000\ 019$?


可除尽的回文数

$545$,$5\ 995$和$15\ 151$是最小的三个能被$109$除尽的回文数。在所有小于$100\ 000$的回文数中,有九个能够被$109$除尽。

在所有小于$10^{32}$的回文数中,有多少个能够被$10\ 000\ 019$整除?