99689

Properties

Appears in sequences

• Decimal part of a(n)^(1/2) starts with a 'nine digits' anagram.at n=33A034277
• Harmonic mean of digits is 8.at n=23A062185
• Primes which can be represented as the sum of a square and its reverse.at n=17A072383
• a(n) = largest prime using least number of possible digits with a digit sum n, or 0 if no such number exists. E.g., if n > 9 and there are no two-digit primes with a given digit sum n then three-digit numbers are explored and so on.at n=40A088115
• Primes with digit sum = 41.at n=12A106774
• Numbers n such that (19^n + 5^n)/24 is prime.at n=9A229612
• The first of three consecutive primes the sum of which is equal to the sum of three consecutive heptagonal numbers.at n=7A298302
• Prime numbers which can be expressed as the sum of two numbers, one of which is the rotationally ambigrammatic transformation of the other excluding leading zeros.at n=16A340054
• Primes having only {6, 8, 9} as digits.at n=29A385800
• Prime numbersat n=9564