1000587745
This number is a composite.
The smallest triangular number greater than a billion whose
sum of digits is an emirp. [Jha]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
The smallest triangular number greater than a billion whose
sum of digits is an emirp. [Jha]