Here is a math riddle
Level
2
Can you 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.
The answer is 3211000.
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1 solution
It tells about itself 3 zeros 2 ones 1 two 1 three and 0 fours , fives and six