• View
• Edit
• History
• Print

20210426a

double-base palindromes

The decimal number, 585 = 1001001001₂ (binary), is palindromic in both bases.

Find the sum of all numbers, less than one million, which are palindromic in base 10 and base 2.

(Note that a palindromic number, in either base, may not include leading zeros.)

Help

Use the built-in function bin().