67528
domain: N
Appears in sequences
- Even triangular numbers with prime indices.at n=37A034955
- f-amicable numbers where f(n) = n-1.at n=14A066511
- Triangular numbers with sum of digits = 28.at n=16A068132
- Triangular numbers in which the sum of the external digits equals the sum of the internal digits.at n=20A088289
- Hexagonal numbers for which the sum of the digits is also a hexagonal number.at n=36A117062