What subset of real numbers does 26 belong to

Natural numbers are counting numbers like 1,2,3,4,5 ...

this set does not include negative numbers or 0

whole numbers are natual numbers but including 0

integers are whole numbers and also negative numbers

rational numbers are numbers that can be written in form a/b where b≠0

irrational numbers can't be written in form a/b, examples are like pi

real numbers are all of the abovee and more

26 belongs to the natural numbers set