а) 89:
$$89 = 64 + 16 + 8 + 1 = 2^6 + 2^4 + 2^3 + 2^0 = 1011001_2$$
б) 600:
$$600 = 512 + 64 + 16 + 8 = 2^9 + 2^6 + 2^4 + 2^3 = 1001011000_2$$
в) 2020:
$$2020 = 1024 + 512 + 256 + 128 + 64 + 32 + 4 = 2^{10} + 2^9 + 2^8 + 2^7 + 2^6 + 2^5 + 2^2 = 11111100100_2$$
Ответ:
а) $$1011001_2$$
б) $$1001011000_2$$
в) $$11111100100_2$$