\[\boxed{\mathbf{427}.}\]
\[1)\ 6\frac{27}{1000} = 6,027\]
\[2)\ 17\frac{24}{1000} = 17,024\]
\[3)\ \frac{574}{1000} = 0,574\]
\[4)\ 5\frac{1}{1000} = 5,001\]
\[5)\ \frac{9}{100} = 0,09\]
\[6)\ \frac{3}{10000} = 0,0003\]