Numerical functions

You can use numeric-calculation functions to place files based on either numeric parts of the file name, numeric parts of the current date, or UNIX-client user IDs or group IDs.

These functions can be used in combination with comparison predicates and mathematical infix operators (such as addition, subtraction, multiplication, division, modulo division, and exponentiation).
INT(x)
Converts number x to a whole number, rounding up fractions of .5 or greater.
INTEGER(x)
Converts number x to a whole number, rounding up fractions of .5 or greater.
MOD(x,y)
Determines the value of x taken modulo y (x % y).