It's better than your recollection in the neighborhood of $500,000, Emerald. It's closer to $1M, which does pay off that debt at least.
During the six months ended June 30, 2020, the holders of Note Ten, Note Eleven and Note Twelve elected to convert $170,000, $400,000 and $350,110 in principal of the respective convertible notes into 564,420, 4,420,411 and 3,925,000 shares of the Company’s common stock, respectively (See Note 10).