The antilog of 2.4 is 10^2.4
$${{\mathtt{10}}}^{{\mathtt{2.4}}} = {\mathtt{251.188\: \!643\: \!150\: \!958\: \!011\: \!1}}$$
Check:
$${log}_{10}\left({\mathtt{251.188\: \!643\: \!150\: \!958\: \!011\: \!1}}\right) = {\frac{{\mathtt{12}}}{{\mathtt{5}}}} = {\mathtt{2.4}}$$
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