Convert from ternary number system to decimal number 212.

Let’s number the numbers in the number 212 from zero to two, starting from the right. Next, we multiply each digit of the number by three to the power of the number that is assigned to this digit, that is:
2 * 3 ^ 2 + 1 * 3 ^ 1 + 2 * 3 ^ 0 = 18 + 3 + 2 = 23
Answer: 23



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