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Palindromic number - Wikipedia, the free encyclopedia
A palindromic number or numeral palindrome is a 'symmetrical' number like 16461, that remains the same when its digits are reversed. The term palindromic is derived from palindrome, which refers...
en.wikipedia.org/wiki/Palindromic_number |
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Strictly non-palindromic number - Wikipedia, the free encyclopedia
A strictly non-palindromic number is an integer n that is not palindromic in any numeral system with a base b in the range 2 ≤ b ≤ n − 2. For example, the number six is written as 110 in...
en.wikipedia.org/wiki/Strictly_non-palindromic_number |
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Palindromic numbers are numbers which read the same from ... My general strategy goes that to find a double palindromic number, the solution to its palindromic decimal representation minus its binary representation must be zero (since they are equal).
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Given $n$ being $k$ digits $d_x$ long in base $b$ its value being $$n = \sum_{i = 0}^{k - 1} d_kb^i$$ then if the equalities $d_k = d_1$ $d_{k - 1} = d_2$ etc., hold, then $n$ is a palindromic number. There are infinitely many palindromic numbers in any given base.
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The palindromic number conjecture: don't try this! From Creative Computing Vol. 11, No. 8 / August 1985 ... The palindromic number conjecture: don't try this! (recreational computing) Michael W. Ecker.
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Palindromic Number Did you know that if you multiply 111,111,111 x 111,111,111 that the answer is consecutive? Try it and then check the answer to see what happens. Thanks Macon...
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