1. Numbers
  2. Compare 8191 vs 13121

Compare 8191 vs 13121

Property819113121
Typeprimeprime
Unique factors11
Total factors11
Prime factorization81911131211
Prime factorization819113121
Divisors count22
Divisors1, 81911, 13121
Number of properties107
Additive primes503rd 
Chen primes552nd791st
Class 1+ primes25th27th
Harmonic primes377th 
Isolated primes675th1066th
Lucky primes186th 
Mersenne primes5th 
Pierpont primes of the 2nd kind25th27th
Primes1028th1561st
Pythagorean primes 774th
Sexy primes (1st member) 502nd
Solinas primes76th 
Roman numberals  
Base 211111111111112110011010000012
Base 310202010131222222223
Base 41333333430310014
Base 523023154044415
Base 610153161404256
Base 7326117531537
Base 8177778315018
Base 9122119188889
Base 108191101312110
Base 11617711994911
Base 1248a712771512
Base 133961135c8413
Base 142db1144ad314
Base 152661153d4b15
Base 161fff16334116
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