Find a seven digit number which describes itself
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user193013
Updated on August 01, 2022Comments

user193013 3 months
Find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

JMoravitz almost 8 years

Ryan almost 8 yearsI wonder how to generalize this: how many selfdescriptive numbers are there in base b with d digits?
