320

320 is a natural number that follows 319 and precedes 321. It is an even, composite number.

Mathematically, 320 factors as 2^6 × 5. Its positive divisors are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, and 320. It is a Harshad number in base 10, since the sum of its digits is 3 + 2 + 0 = 5 and 320 is divisible by 5 (320 ÷ 5 = 64).

In numeral systems, 320 is written as 101000000 in binary, 0x140 in hexadecimal, and 0o500 in octal. In Roman numerals, it is CCCXX.

In calendars and geography, 320 can denote a year, such as 320 CE, during the late Roman Empire. In modern landlines and communications, area code 320 covers central Minnesota in the United States.

In technology and media, 320 × 240 pixels, commonly known as QVGA, was a standard display resolution used on many early mobile devices and embedded screens. The number also appears in various product names, model numbers, and numerical designations across industries, reflecting its role as a simple, round decimal value.