888888
domain: N
Appears in sequences
- a(n) = 8*(10^n - 1)/9.at n=6A002282
- Numbers > 9 with all digits the same.at n=43A014181
- Terms of A001273 with trailing 9's stripped (at n=13 term becomes periodic with period 49).at n=23A018785
- Terms of A001273 with trailing 9's stripped (at n=13 term becomes periodic with period 49).at n=11A018785
- Repdigit - 1 is prime.at n=10A028987
- Smallest positive number that needs more lines when shown on a 7-segment display (digital clock) than any previous term.at n=37A038619
- Palindromes with exactly 8 prime factors (counted with multiplicity).at n=24A046334
- Composite palindromes divisible by the sum of their prime factors (counted with multiplicity).at n=23A046348
- Composite palindromes divisible by the palindromic sum of their prime factors (counted with multiplicity).at n=4A046360
- Nonsquarefree numbers obtained by repeating a single digit.at n=21A077572
- Smallest multiple of n using only digits 0 and 8.at n=32A078247
- Palindromes n such that 4n + 1 is also a palindrome.at n=23A083831
- Palindromic numbers that set a new record for number of palindromic divisors.at n=18A084324
- a(n) is the least number with n palindromic divisors.at n=37A087997
- Numbers that can be expressed as the difference of the squares of primes in exactly eleven distinct ways.at n=30A092007
- Euler-phi applied to A096503 results in these decimal repdigits.at n=52A096504
- Euler-phi applied to A096503 results in these decimal repdigits.at n=51A096504
- Euler-phi applied to A096503 results in these decimal repdigits.at n=50A096504
- Euler-phi applied to A096503 results in these decimal repdigits.at n=48A096504
- Euler-phi applied to A096503 results in these decimal repdigits.at n=47A096504