0o12772
0o12772 is a numerical value represented in octal (base-8) notation. The '0o' prefix indicates that the number is written in octal. The digits following the prefix, '12772', are the octal digits themselves. To understand its decimal (base-10) equivalent, we can convert it. Starting from the rightmost digit, each position represents a power of 8. So, 2 is multiplied by 8^0 (which is 1), 7 is multiplied by 8^1 (which is 8), the next 7 is multiplied by 8^2 (which is 64), 2 is multiplied by 8^3 (which is 512), and finally, 1 is multiplied by 8^4 (which is 4096). Summing these products gives us the decimal value: (1 * 4096) + (2 * 512) + (7 * 64) + (7 * 8) + (2 * 1) = 4096 + 1024 + 448 + 56 + 2 = 5626. Therefore, 0o12772 in octal is equal to 5626 in decimal. Octal notation is sometimes used in computing, particularly in older systems or for representing file permissions. It offers a more compact representation than binary (base-2) while still being directly convertible to binary.