$$(\frac{3^{9}}{3^{-5}})^{-2}$$
$\frac{1}{22876792454961}\approx 4.371242175 \cdot 10^{-14}$
$$\left(3^{14}\right)^{-2}$$
$$4782969^{-2}$$
$$\frac{1}{22876792454961}$$
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$\frac{1}{3 ^ {28}} = 4.371242174656975 \times 10^{-14}$