750

750 is a natural number that follows 749 and precedes 751. In mathematics, it factors as 2 × 3 × 5^3, so it is composite. It has 16 divisors in total. The sum of its proper divisors is 1122, which is greater than 750, so 750 is an abundant number. In Roman numerals it is written as DCCL.

Spoken and written forms: In American English, the number is spoken "seven hundred fifty"; in British English, "seven hundred and fifty."

Common uses and measurements: The standard wine bottle size is 750 milliliters (about 25.4 US fluid ounces). In jewelry and precious metals, "750" denotes the fineness of gold, equivalently 18-karat gold (75% gold).

Historical notes: In the year 750 CE, the Abbasid Revolution culminated and the Abbasid Caliphate was established, with Baghdad later serving as its capital. The year 750 BCE is a year in the ancient period across various civilizations but is not tied to a single widely cited event.

See also: In everyday usage, 750 often appears in pricing, quantities, and as a common measure due to its mathematical properties and its role as a multiple of several small integers.

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