A positive ion A and a negative ion B has charges 6.67 × 10^-19 C and 9.6 × 10^-10 C, and masses

A positive ion A and a negative ion B has charges 6.67 × 10^–19 C and 9.6 × 10^–10 C, and masses 19.2 × 10^–27 kg and 9 × 10^–27 kg respectively. At an instant, the ions are separated by a certain distance r. At that instant the ratio of the magnitudes of electrostatic force to gravitational force is P × 10^–13, where the value of P is ____.

                                                                     (JEE-2025)