3665 Octal in Decimal

Let's convert the octal number 3665 to decimal without using a calculator:

Step 1: Write Down Powers of 8

Write down the powers of 8 starting from the right, with the first digit corresponding to 8⁰, the second to 8¹, the third to 8², and so on.

Step 2: Convert Each Octal Digit to Decimal

Convert each octal digit to its decimal equivalent:

3₈ = 3₁₀

6₈ = 6₁₀

5₈ = 5₁₀

Step 3: Multiply and Sum

Multiply each octal digit by its corresponding power of 8 and sum the results.

(3 × 512) + (6 × 64) + (6 × 8) + (5 × 1) = 1536 + 384 + 48 + 5 = 1973

So, the decimal representation of the octal number 3665 is 1973.

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