16891
This number is a composite.
The smallest strobogrammatic number that can be expressed
as the sum of three consecutive strobogrammatic primes:
(181+619+16091 = 16891). Note that R(16891) = 19861 is a
strobogrammatic prime. [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell