852

852 is a natural number that follows 851 and precedes 853. It is an even composite number with prime factorization 2^2 × 3 × 71.

In numeral systems, 852 is written as DCCCLII in Roman numerals; in binary it is 1101010100; in hexadecimal it is 0x354. When spoken in English, it is typically rendered as “eight hundred fifty-two.”

Its divisors are 1, 2, 3, 4, 6, 12, 71, 142, 213, 284, 426, and 852, reflecting its prime factorization of 2^2 · 3 · 71. Consequently, 852 is divisible by 2, 3, 4, 6, 12, and by 71 and the larger combinations derived from the prime factors. It is not divisible by 5, 7, or several other small primes.

In telecommunications, 852 is the international dialing code for Hong Kong. The country calling code +852 is used to route calls to Hong Kong from abroad and appears in international formatting under the E.164 standard.

Historically, 852 CE falls in the 9th century, a period when the Tang dynasty governed much of China and in Europe the early medieval era was underway. As a number, 852 is primarily of interest in arithmetic, numeral representations, and contextual uses such as its role as an international dialing code.