599999

Properties

Appears in sequences

• Primes that contain digits 5 and 9 only.at n=7A020468
• a(1) = 2; a(n+1) is obtained by trying to change just one digit of a(n), starting with the least significant digit, until a new prime is reached. Take the lexicographically earliest sequence. Digits may be replaced by any larger digit.at n=20A059498
• Primes at which sum of digits strictly increases.at n=30A061248
• Smallest prime with digit sum n, or 0 if no such prime exists.at n=49A067180
• The smallest prime with a possible given digit sum.at n=33A067523
• Smaller of two consecutive primes which have no common digits.at n=23A068803
• Smallest prime whose digital sum is equal to the n-th composite number, or 0 if no such prime exists.at n=33A073867
• Primes of the form identical digits preceded by a 5.at n=8A090153
• Primes of the form 6*10^k - 1.at n=4A093946
• Positive integers a such that f(3a)+f(a)=concatenation of 3a and a, where f(k)=k(k+3)/2 (A000096).at n=5A099151
• Near-repdigit primes with 9 as repeated digit.at n=23A105975
• Primes with digit sum = 50.at n=0A106780
• Smallest prime whose digital sum is equal to the n-th composite number not congruent to 0 (modulo 3).at n=18A111380
• Smallest number whose sum of digits is 2n.at n=25A133296
• Primes consisting of a digit and a nonempty string of 9's (i.e., primes of the form k*10^m - 1, where k is any digit).at n=16A141311
• Primes of the form k followed by k 9's.at n=2A145851
• Minimum number k for which the digital sum of k*n is 5*n.at n=10A147825
• Least prime p with digit sum A047235(n).at n=16A152652
• Primes with at least one digit appearing exactly five times in the decimal expansion.at n=28A161796
• Floor( 1/(n*sinh(1/n) + n*sin(1/n) - 2) ).at n=9A248974