98689

Properties

Appears in sequences

• Largest palindromic prime with 2n-1 digits.at n=2A028990
• Palindromic in bases 10 and 16.at n=22A029731
• Lucky numbers that are both palindromic and prime.at n=17A031881
• Primes that are palindromic in bases 10 and 16.at n=8A046484
• Palindromic primes whose digits contain circles.at n=0A052090
• Palindromic primes with strictly decreasing digits up to the middle and then strictly increasing.at n=26A062352
• Palindromic primes with middle digit 6.at n=7A082442
• Palindromic primes using only nonprime digits (0,1,4,6,8,9).at n=19A083185
• Palindromic primes with nonincreasing digits up to the middle and then nondecreasing.at n=31A084837
• Palindromic primes p such that if each digit d is replaced by 10-d then the resulting palindrome is also a prime.at n=22A088092
• Let p run through the primes; write p in base 10 and then interpret it in base 128 getting a number q; if q is prime then adjoin q to the sequence.at n=25A090718
• Smallest palindromic prime p, larger than previous term, such that concatenation of n and p is a prime.at n=15A103836
• Primes with digit sum = 40.at n=26A106773
• Palindromic primes with digit sum = 40.at n=1A109185
• Minimal set of palindrome prime-strings in base 10 in the sense of A071062.at n=11A114835
• Palindromic primes that start and end with 9.at n=20A128375
• Palindromic primes with only composite digits (i.e.,4,6,8,9).at n=4A128376
• Palindromic primes whose squares are the sum of three consecutive primes.at n=9A130704
• Palindromes in A005448.at n=6A162703
• Palindromic prime numbers == 4 (mod 9).at n=16A229499