Calculate the binding energy of the nucleus of a helium atom (nucleus mass 4.002603 amu)

In order to calculate the binding energy of the nucleus of a helium atom, one should recall the energy formula.
E = mc², where E is energy, m is mass, and c is the speed of light in a vacuum.
The speed of light is 3 × 10⁸ m / s.
Now let us substitute the known data into the indicated formula, including the mass of the nucleus of the helium atom, which is 4.002603 AU. m.
E = 4.002603 × (3 × 10⁸) ².
E = 4.002603 × 9 × 10¹⁶.
E = 36.023427 × 10¹⁶ (electron volts).
Answer: E = 36.023427 × 10¹⁶ electron volts.