MathDB
Funny numbers

Source: Tuymaada 2015, Day 1, Problem 2, Junior League

July 10, 2017
number theory

Problem Statement

We call number as funny if it divisible by sum its digits +1+1.(for example 1+2+112 1+2+1|12 ,so 1212 is funny) What is maximum number of consecutive funny numbers ?
O. Podlipski