The mystery of 14400ah is solved!There will be 72 batteries in total. Each one is 200 ah and weighs about 5.70kgs.
I'm guessing you double multiplied your batteries, e.g. 72 x 3.2 = 230V, and then 72 x 200 = 14400Ah. You don't multiply Ah together unless you're connecting them in parallel.