A common example of alpha decay is ${ }_{92}^{238} \mathrm{U} \longrightarrow{ }_{90}^{234} \mathrm{Th}+{ }_{2} \mathrm{He}^{4}+\mathrm{Q}$

Given :

${ }_{92}^{238} \mathrm{U}=238.05060 ~\mathrm{u}$,

${ }_{90}^{234} \mathrm{Th}=234.04360 ~\mathrm{u}$,

${ }_{2}^{4} \mathrm{He}=4.00260 ~\mathrm{u}$ and

$1 \mathrm{u}=931.5 \frac{\mathrm{MeV}}{c^{2}}$

The energy released $(Q)$ during the alpha decay of ${ }_{92}^{238} \mathrm{U}$ is __________ MeV