31401724537
domain: N
Appears in sequences
- Primes of the form n^6 + n^5 + n^4 + n^3 + n^2 + n + 1.at n=13A088550
- Primes of the form k^6 + k^5 + k^4 + k^3 + k^2 + k + 1 where k is nonprime.at n=7A194194
- Primes of the form: 1 + sigma(n) + sigma(n)^2 + sigma(n)^3 + sigma(n)^4 + sigma(n)^5 + sigma(n)^6.at n=9A259253
- Primes of the form: 1 + sigma(n) + sigma(n)^2 + sigma(n)^3 + sigma(n)^4 + sigma(n)^5 + sigma(n)^6.at n=13A259253