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    Is 0 a self-descriptive number?
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    (Original post by Kamila_Kamizaki)
    Is 0 a self-descriptive number?
    Yes

    In mathematics, a self- descriptive number is an integer m that in a given base b is b digits long in which each digit d at position n (the most significant digit being at position 0 and the least significant at position b - 1) counts how many instances of digit n are in m.
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    (Original post by Den987)
    ...
    Just so you are aware, the OP is trying to gain an advantage in a maths competition.
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    (Original post by Mr M)
    Just so you are aware, the OP is trying to gain an advantage in a maths competition.
    The answer I gave was based on the definition that I found online when you search the question they gave, which I posted below :ff2:. But either way, thanks for letting me know.
 
 
 
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