5551 Octal in Decimal

Let's convert the octal number 5551 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:

5₈ = 5₁₀

1₈ = 1₁₀

Step 3: Multiply and Sum

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

(5 × 512) + (5 × 64) + (5 × 8) + (1 × 1) = 2560 + 320 + 40 + 1 = 2921

So, the decimal representation of the octal number 5551 is 2921.

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