#900 · Combinatorics · Counting
Sum of even‑digit numbers
Find the sum of all five‑digit numbers greater than 10000 that can be formed using each of the digits 0, 2, 4, 6, 8 at most once.
H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. XI. Permutations and Combinations, Examples XI.b, No. 30
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