121 in base 4 = 16 + 8 + 1 (base ten) = 25
84 in base 16 = 128 + 4 (base ten) = 132132 + 25 = 157(base 10) = 9D (base 16) = 2131 (base 4)
Chat with our AI personalities
26 plus 16 plus 84 is equal to 126.
4(21 + 4)
84 + 16 = 100
84
That sum is 84. Since it's only one number, its mean is also 84. If those numbers were simply listed, without being added, then their mean would be 16.8 .