1. Numbers
  2. Compare 19991 vs 20129

Compare 19991 vs 20129

Property1999120129
Typeprimeprime
Unique factors11
Total factors11
Prime factorization199911201291
Prime factorization1999120129
Divisors count22
Divisors1, 199911, 20129
Number of properties96
Additive primes1049th 
Chen primes1111th1119th
Harmonic primes820th 
Isolated primes 1592nd
Palindromic primes46th 
Primes2260th2277th
Prime triplets (1st member)168th 
Pythagorean primes 1132nd
Sexy primes (1st member)693rd 
Sexy primes (2nd member) 698th
Sexy prime triplets (3rd member) 192nd
Sophie germain primes326th 
Twin primes (1st member)342nd 
Roman numberals  
Base 210011100001011121001110101000012
Base 31000102102310001211123
Base 4103201134103222014
Base 51114431511210045
Base 623231562331056
Base 711216671124547
Base 8470278472418
Base 9303729305459
Base 1019991102012910
Base 1114024111413a11
Base 12b69b12b79512
Base 13913a13921513
Base 1473dd14749b14
Base 155dcb155e6e15
Base 164e17164ea116
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