14A_16
144_8 = 1 * 8^2 + 4 * 8^1 + 4 * 8^0 = 64 + 32 + 4 = 100_10
11100110_2 = 1 * 2^7 + 1 * 2^6 + 1 * 2^5 + 0 * 2^4 + 0 * 2^3 + 1 * 2^2 + 1 * 2^1 + 0 * 2^0 = 128 + 64 + 32 + 0 + 0 + 4 + 2 + 0 = 230_10
100 + 230 = 330
330/16 = 20 и остаток 10 (A)
20/16 = 1 и остаток 4
1/16 = 0 и остаток 1
330_10 = 14A_16