1. Numbers
  2. Compare 19997 vs 20005

Compare 19997 vs 20005

Property1999720005
Typeprimesemiprime
Unique factors12
Total factors12
Prime factorization19997151 × 40011
Prime factorization199975 × 4001
Divisors count24
Divisors1, 199971, 5, 4001, 20005
Number of properties91
Chen primes1112th 
Cousin primes (2nd member)344th 
Happy primes377th 
Harmonic primes821st 
Isolated primes1579th 
Primes2262nd 
Prime triplets (3rd member)168th 
Pythagorean primes1125th 
Semiprimes 5083rd
Sexy primes (2nd member)693rd 
Roman numberals  
Base 210011100001110121001110001001012
Base 31000102122310001022213
Base 4103201314103202114
Base 51114442511200105
Base 623232562323416
Base 711220571122167
Base 8470358470458
Base 9303789303879
Base 1019997102000510
Base 111402a111403711
Base 12b6a512b6b112
Base 13914313914b13
Base 14740514740d14
Base 155dd2155dda15
Base 164e1d164e2516
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