Friday, January 15, 2010

915

915 = 3 x 5 x 61.

915 is a Smith number. The sum of its digits equals the sum of the digits of its prime factors: 9 + 1 + 5 = 3 + 5 + 6 + 1 = 15.

915 is 4123 in base 6, 555 in base 13, and 393 in base 16.

915 is the number of primes less that 104 that do not contain the digit 8.

915 is a telephone area code in Texas for the area around El Paso.

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