48991

Properties

Appears in sequences

• Numbers n such that phi(reversal(n)) = reversal(phi(n)). Ignore leading 0's.at n=20A069282
• Number of arrays of 4 integers in -n..n with sum zero and equal numbers of elements greater than zero and less than zero.at n=22A201812
• Primes of the form 10n^2 - 9.at n=23A201964
• Greatest number (in decimal representation) with n nonprime substrings in base-4 representation (substrings with leading zeros are considered to be nonprime).at n=14A217114
• Minimal natural number (in decimal representation) with n prime substrings in base-4 representation (substrings with leading zeros are considered to be nonprime).at n=22A217304
• Primes that are exactly between the nearest square and the nearest triangular number.at n=22A233443
• Right-truncatable, reversible primes in base 16.at n=34A238851
• Prime numbersat n=5035