Ivanhoe Corporation is preparing earnings per share data for 2017. The net income for the year ended December 31, 2017, was $395,000 and there were 58,100 common shares outstanding during the entire year. Ivanhoe has the following two convertible securities outstanding: 12% convertible bonds (each $1,000 bond is convertible into 25 common shares) $114,000 5% convertible $100 par value preferred shares (each share is convertible into 3 common shares) $51,000 Both convertible securities were issued at face value in 2014. Ivanhoes income tax rate is 21%. The preferred shares are cumulative. For simplicity, ignore the requirement to record the debt and equity components of the bonds separately. Assume that 47% of the convertible bonds were converted to common shares on April 1, 2017.

a/ Calculate Ivanhoes weighted average common shares outstanding