500 + 6 + 9 + 2000 = 2515₁₀;
2515₁₀ = 2048 + 256 + 128 + 64 + 16 + 2 + 1 = 100111010011₂
100 111 010 011₂ = 4723₈;
1001 1101 0011₂ = 9D3₁₆;
900 + 6 + 9 + 2000 = 2915₁₀;
2915₁₀ = 2048 + 512 + 256 + 64 + 32 + 2 + 1 = 101101100011₂
101 101 100 011₂ = 5543₈;
1011 0110 0011₂ = B63₁₆;