51227

51227 is a positive integer that appears in various mathematical contexts as a five-digit decimal number. It is composite, with prime factorization 11 × 4657.

Its divisibility by 11 can be shown using the alternating-sum test: the sum of the digits in odd positions (from the right) is 7 + 2 + 5 = 14, and the sum of the digits in even positions is 2 + 1 = 3; the difference 14 − 3 = 11 is a multiple of 11. The cofactor 4657 is itself prime, so the complete factorization is 11 × 4657.

In different numeral systems, 51227 has the following representations: in binary it is 1100100000011011, in octal it is 144033, and in hexadecimal it is 0xC81B. It can also be expressed as a sum of powers of two: 2^15 + 2^14 + 2^11 + 2^4 + 2^3 + 2^1 + 2^0.

As a decimal identifier, 51227 may serve as a generic catalog or inventory number in various systems. There is no widely recognized mathematical constant or historical significance uniquely attached to 51227 beyond its basic numeric and factorization properties.