1010131domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers whose base-10 representation has exactly 7 runs.at n=19A043643Primes with arithmetic mean of digits = 1 (sum of digits = number of digits).at n=29A069710Seven-digit primes whose first, third, fifth, and seventh digits are the same.at n=0A269564Prime numbersat n=79258