580

580 = 2² x 5 x 29.

580 has two representations as a sum of two squares: 580 = 2² + 24² = 16² + 18².

580 is a divisor of 59² - 1.

580 is 2404 in base 6, 404 in base 12, and 202 in base 17.

Interstate 580 in northern California connects the San Francisco Bay area with Interstate 5 through California's Central Valley.

Source: Positive Integers