The number π is a mathematical constant, the ratio of a circle's circumference to its diameter, commonly approximated as 3.14159. It has been represented by the Greek letter "π" since the mid-18th century, though it is also sometimes spelled out as "pi" (/paɪ/).
well, it depends on the irrational number. I am going to use a popular one 22/7 , this is pi
by substituting pi into 32k, you get 32×3.14 = 100.53, hence 32k + 405 = 505. 53
