Blossom Corporation had $25,200$ common shares on January $1,2021.$ On March $1,6,300$ shares were repurchased. On June $1$ and September $30,8,100$ and $12,600$ shares were issued, respectively.

Calculate the weighted average number of shares. $($Round answer to $0$ decimal places, e$.$g$.5,275.)$

Weighted average number of shares