Thursday, April 26, 2012

1267

1267 = 7 x 181.

1267 is 5511 in base 6. It ends with the digit 7 in bases 9, 10, 12, 14, 15, 18, 20, 21, 28, and 30.

1267 is the sum of two positive fifth powers (A003347): 1267 = 45 + 35.

1267 is the sum of nine consecutive primes (A127336): 1267 = 113 + 127 + 131 + 137 + 139 + 149 + 151 + 157 + 163.

12672 = 1605289 contains exactly seven different digits (A054035).

1267 is the maximum number of points visible from some point in a square 45 x 45 lattice (A141224).


Source: On-Line Encyclopedia of Integer Sequences

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