Ответ:

  1. 11000111₂ = 307₈ = 199₁₀ = C7₁₆.
  2. 346₈ = 11100110₂ = 230₁₀ = E6₁₆.
  3. 137₁₀ = 10001001₂ = 211₈ = 89₁₆.
  4. D6₁₆ = 11010110₂ = 326₈ = 214₁₀.