In mathematics, a harshad number (or Niven number) in a given number base is an integer that is divisible by the sum of its digits when written in that base.
Wikipedia
(Laryy Niven, again?)
Harshad Number
In mathematics, a harshad number (or Niven number) in a given number base is an integer that is divisible by the sum of its digits when written in that base.
Wikipedia
(Laryy Niven, again?)
Candid Corvid Productions 