200

200 is the natural number that follows 199 and precedes 201. It is an even number and a composite number, since it can be factored as 200 = 2^3 × 5^2.

The positive divisors of 200 are 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, and 200, making twelve divisors in total. The sum of all divisors is 465, so the sum of proper divisors is 265. Because the sum of proper divisors (265) exceeds 200, the number is classified as abundant. In base 10, 200 is also a Harshad (Niven) number, since it is divisible by the sum of its digits (2), yielding 100.

In numeral systems, 200 is represented as 11001000 in binary, as 0xC8 in hexadecimal, and as 310 in octal. In Roman numerals, it is written CC.

In practical and cultural contexts, 200 is commonly encountered. In computing and networking, HTTP status code 200 indicates a successful request, and the phrase “200 OK” is widely used to denote a successful response in web communications. The number also appears in measurements and quantities, such as distances, temperatures, or monetary amounts, where it functions as a convenient round figure.

As a year, 200 (AD or CE) falls in the early part of the 3rd century and is referenced in historical timelines and chronicles. The number 200 thus serves as a basic integer with straightforward arithmetic properties and a variety of representations and usage in everyday and technical contexts.