[tex]\it{1\cdot3\cdot7\cdot11\cdot2^{2012}\cdot5^{2013}=3\cdot77\cdot2^{2012}\cdot5\cdot5^{2012}
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= 231\cdot5\cdot(2\cdot5)^{2012} = 1155\cdot10^{2012} = 1155 000 ... 0
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Numarul\ final\ are\ 2012 \ zerouri.
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Suma\ cifrelor\ este :\ 1+1+5+5 = 12.}[/tex]