920
920 is a natural number that comes after 919 and before 921. In mathematics, 920 is even and composite. Its prime factorization is 2^3 × 5 × 23. The divisor function yields 16 positive divisors: 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, and 920. The sum of all divisors is 2160, so the sum of proper divisors is 1240, making 920 an abundant number. In various bases, 920 is written as 1110011000 in binary, 1630 in octal, and 0x398 in hexadecimal. In Roman numerals it is CMXX.
As a calendar year, 920 refers to the year AD 920 in the early medieval period, with
In the North American Numbering Plan, 920 is a geographic area code covering eastern Wisconsin, including Appleton,
In popular technology, the Nokia Lumia 920 is a smartphone model released in 2012 for Windows Phone