1. Numbers
  2. Compare 19997 vs 20009

Compare 19997 vs 20009

Property1999720009
Typeprimecomposite number
Unique factors13
Total factors13
Prime factorization199971111 × 171 × 1071
Prime factorization1999711 × 17 × 107
Divisors count28
Divisors1, 199971, 11, 17, 107, 187, 1177, 1819, 20009
Number of properties90
Chen primes1112th 
Cousin primes (2nd member)344th 
Happy primes377th 
Harmonic primes821st 
Isolated primes1579th 
Primes2262nd 
Prime triplets (3rd member)168th 
Pythagorean primes1125th 
Sexy primes (2nd member)693rd 
Roman numberals  
Base 210011100001110121001110001010012
Base 31000102122310001100023
Base 4103201314103202214
Base 51114442511200145
Base 623232562323456
Base 711220571122237
Base 8470358470518
Base 9303789304029
Base 1019997102000910
Base 111402a111404011
Base 12b6a512b6b512
Base 13914313915213
Base 14740514741314
Base 155dd2155dde15
Base 164e1d164e2916
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