The shareholders' equity section of Max Inc. provides information as follows:

Stockholders' equity
Common stock, $1 par, 250,000 shares authorized, 75,500 shares issued, 72,000 shares outstanding	$75,500
Paid-in capital in excess of parCommon stock	480,000
Retained earnings	360,000
Accumulated other comprehensive income	48,000
Less: Treasury stock, 3,500 shares at cost	(55,000)
Total equity attributable to Nakoma Inc. stockholders	$908,500
Equity attributable to noncontrolling interests	5,000
Total stockholders' equity	$913,500

During 2020, Max Inc. has the following transactions:

• On January 15, 2020, Max Inc. reacquired and retired 5,000 shares of $1 par value common stock at $20 per share.
• On Feburary 28, 2020, Max Inc. declared and issued a 2-for-1 stock split effected in form of a 100% large stock dividend.
• On June 30, 2020, Max Inc. purchased 2,200 common shares for the treasury at $18 per share.
• On December 15, 2020, Max Inc. retired 2,400 treasury shares.

Required: Given the transactions above, on December 31, 2020,

1. The number of authorized shares is shares.

2. The number of issued shares is shares.

3. The number of outstanding shares is shares.

4. The number of treasury shares is shares.