Million‑plus numbers from digits

How many numbers greater than one million can be formed using all the digits 2, 3, 0, 3, 4, 2, 3 exactly once each?

~5 minAnswer checked instantlypermutations with leading zero restriction

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. XI. Permutations and Combinations, Examples XI.b, No. 4

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