2. (10) A small factory produces toilet paper. The annual demand is 360,000 units, and the company produces toilet paper in batches. On average, the company can produce 3,000 units a day during the production period. The cost to set up the production process is $100, and it costs the company $10 to carry 100 toilet paper units for one year. How many toilet paper units should the company produce in each batch? (Assume 360 days per year)