Ответ:

  1. 10101010₂ = 252₈ = 170₁₀ = AA₁₆.
  2. 301₈ = 11000001₂ = 193₁₀ = C1₁₆.
  3. 229₁₀ = 11100101₂ = 345₈ = E5₁₆.
  4. 8D₁₆ = 10001101₂ = 215₈ = 141₁₀.