101021

Properties

Appears in sequences

• Primes having only {0, 1, 2} as digits.at n=25A036953
• Denominators of continued fraction convergents to sqrt(129).at n=12A041235
• Denominators of continued fraction convergents to sqrt(516).at n=12A041987
• Numbers whose base-10 representation has exactly 6 runs.at n=10A043642
• Primes whose sum of digits is 5.at n=28A062341
• a(1) = 2; a(n+1) is the smallest prime > a(n) which differs from it in every digit.at n=40A068853
• Prime numbers such that first reversing digits and after squaring equals the result of first-squaring and after-reversing. Primes in A085305.at n=39A085306
• Primes whose decimal representation also represents a prime in base 3.at n=11A089981
• Primes with maximal digit = 2.at n=22A106100
• Beginning with 5, primes of the form: least multiple of the previous term followed by a 1. Beginning with 5, a(n) is the least prime of the form k*a(n-1)*10 +1.at n=3A113073
• Smallest n-digit prime with no identical adjacent digits (or 0 if no such prime exists).at n=5A141116
• The larger member of a prime pair (p,p+100000).at n=24A165297
• Incorrect duplicate of A062341.at n=9A176251
• Primes in A182040.at n=12A182092
• Numbers whose largest digit of all divisors is 2.at n=30A221697
• Not necessarily palindromic primes of which initial and terminal digits are identical, as written in base 3.at n=24A231278
• Numbers with digits in {0,1,2} such that every other digit is strictly less than its neighbors.at n=34A306105
• Numbers k that are the representation of primes in base 3 and in base 4.at n=13A340290
• Primes p such that 5*p+6, 5*p+12, 5*p+18 and 5*p+24 are all primes.at n=32A355577
• Minimal polynomials of nimbers *(2^(2^n)-1), evaluated at 2.at n=3A382121