Monday, December 14, 2009

1115

1115 = 5 x 223.

1115 is the smallest four-digit integer, abcd, such that abcd/(a*b*c*d) is a prime number. Numbers that are divisible by the product of their digits are known as Zuckerman numbers to base 10.

1115 is the sum of nine consecutive prime numbers: 1115 = 103 + 107 + 109 + 113 + 127 + 131 + 139 + 149.

1115 is a multiple of 5 having only odd digits.


NGC 1115 is a galaxy in the constellation Aries.
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