77377

Properties

Appears in sequences

• Primes that contain digits 3 and 7 only.at n=14A020463
• Lucky numbers that are both palindromic and prime.at n=11A031881
• Lesser of two consecutive palindromes, both of which are prime.at n=18A032593
• Numbers having four 7's in base 10.at n=17A043520
• Palindromic terms from A019546.at n=18A045336
• Palindromic primes containing at least one pair of consecutive equal digits.at n=11A050786
• Palindromic primes with just two distinct digits.at n=30A056730
• Palindromic primes with just two distinct prime digits.at n=10A058375
• Smallest prime beginning and ending in at least n 7's.at n=1A068162
• Let p = abc..k be a prime in base 10. Define mirror(p) = abc...k...cba. Sequence gives primes of the form mirror(p) for some p.at n=18A068686
• Smallest palindromic prime with digit sum = n, or 0 if no such prime exists.at n=30A070245
• Smallest prime > 2n+1 beginning and ending with 2n+1, or 0 if no such prime exists.at n=38A070278
• Smallest prime beginning and ending in 2n+1 or 0 if no such prime exists.at n=38A071234
• Palindromic wing primes (a.k.a. near-repdigit palindromic primes) of the general form r*(10^d - 1)/9 + (m-r)*10^floor(d/2) where d is the number of digits (an odd number > 1), r is the repeated digit, and m (different from r) is the middle digit.at n=18A077798
• Palindromic primes = 1 mod 4.at n=39A081220
• Palindromic primes with middle digit 3.at n=12A082439
• Smallest palindromic prime that ends (the least significant side) in (2n-1) the n-th odd number, or 0 if no such number exists, e.g., for 2n-1 = 10k + 5, k>0.at n=38A082626
• a(n) = smallest palindromic prime that begins with A082768(n), or 0 if no such number exists.at n=31A082769
• a(n) = smallest palindromic prime that begins with A082768(n) and contains more than twice the number of digits in A082768(n), or 0 if no such number exists.at n=31A082770
• Smallest palindromic prime using only prime digits (2,3,5,7) and having a sum of digits = prime(n), or 0 if no such number exists.at n=10A083183