# Problem 168: Number Rotations
Consider the number 142857. We can right-rotate this number by moving
the last digit (7) to the front of it, giving us 714285. It can be
verified that 714285=5×142857. This demonstrates an unusual property of
142857: it is a divisor of its right-rotation. Find the last 5 digits of
the sum of all integers n, 10 < n < 10100, that have this
property.