i) It is a square number ii) It is an ordered number iii) Each digit of the number is a square number
A number is an ordered number when its digits are in an increasing sequence. For example, 136 is an ordered number but 163 is not.
11449 107^2 all digits are square number
For some positive integer k both 4^k and 5^k start with the same digit x in base 10 i.e. 4^k = x..... 5^k = x..... What is the sum of all possible values of x.
Let a be a single-digit positive integer. Let n be another positive integer that adjusts itself so that the unit's place digits of n and an + 1 are the same. Find the sum of all possible values of a.
I'm thinking of a number.
What is the number?
