Question 253431
This  a classic for shock value. 
It is usually done on  chess board with 64 squares.
After 30 days it will be 2^29 since it is 2 on the second day
day 1 1
day 2 2^1
day 3 2^2
day 4 2^3

day 30 2^29
2^29=536 million, 870 thousand and 912 cents