210011

Properties

Appears in sequences

• Primes whose decimal representation also represents a prime in base 3.at n=26A089981
• Smallest of seven consecutive primes the sum of the digits of each of which is prime.at n=20A106722
• Smallest of eight consecutive primes whose sum of digits is prime.at n=8A106723
• Smallest of nine consecutive primes whose sum of digits is prime.at n=2A106726
• Primes of the form abs(n^5 - 99n^4 + 3588n^3 - 56822n^2 + 348272n - 286397) in order of increasing nonnegative n.at n=2A272444
• Numbers k such that (19*10^k - 49)/3 is prime.at n=28A282138
• Numbers k that are the representation of primes in base 3 and in base 4.at n=25A340290
• Prime numbersat n=18808