number
Gapful number
An integer of at least three digits divisible by its first-and-last digit concatenation. Not a harshad number as digit-sum divisibility alone, and not a Smith number as factor-digit balance alone.
number
An integer of at least three digits divisible by its first-and-last digit concatenation. Not a harshad number as digit-sum divisibility alone, and not a Smith number as factor-digit balance alone.