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A084017
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Smallest n-digit palindromic multiple of n with a digit sum that is also a multiple of n. For n = 10k it is sufficient that the multiple is palindromic with leading zeros ignored. 0 if no such number exists.
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1
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1, 22, 111, 4004, 50005, 201102, 1103011, 21100112, 100070001, 1000800010, 20009090002, 210003300012, 1000276720001, 20000055000002, 500000050000005, 2110000440000112, 10000007170000001, 200000007700000002
(list; graph; refs; listen; history; internal format)
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