710

710 is the natural number that follows 709 and precedes 711. It is an even and composite number with prime factorization 2 × 5 × 71, the product of three distinct primes. Because of this factorization, 710 is classified as a sphenic number. The divisors of 710 are 1, 2, 5, 10, 71, 142, 355, and 710; the sum of all divisors is 1296, so the sum of proper divisors is 586, making 710 a deficient number. In Roman numerals it is written as DCCX. In binary it is 1011000110, in hexadecimal 0x2C6, and in octal 01306.

710 appears in various numeral systems and is used to illustrate everyday arithmetic properties. As a decimal, it is even and composite; as a sphenic number, it serves as an example of a number that is the product of three distinct primes. The relatively small proper divisor sum classifies it as deficient, a property of interest in divisor-function studies.

In popular culture, the number 710 is associated with cannabis concentrates. The digits upside down resemble the word “OIL,” leading to the use of 710 as a shorthand for cannabis oil and a focal point of “710 Day,” an informal observance in parts of the cannabis community held on July 10. This association has contributed to the term’s visibility beyond pure mathematics.