1. Numbers
  2. Compare 19991 vs 19997

Compare 19991 vs 19997

Property1999119997
Typeprimeprime
Unique factors11
Total factors11
Prime factorization199911199971
Prime factorization1999119997
Divisors count22
Divisors1, 199911, 19997
Number of properties99
Additive primes1049th 
Chen primes1111th1112th
Cousin primes (2nd member) 344th
Happy primes 377th
Harmonic primes820th821st
Isolated primes 1579th
Palindromic primes46th 
Primes2260th2262nd
Prime triplets (1st member)168th 
Prime triplets (3rd member) 168th
Pythagorean primes 1125th
Sexy primes (1st member)693rd 
Sexy primes (2nd member) 693rd
Sophie germain primes326th 
Twin primes (1st member)342nd 
Roman numberals  
Base 210011100001011121001110000111012
Base 31000102102310001021223
Base 4103201134103201314
Base 51114431511144425
Base 623231562323256
Base 711216671122057
Base 8470278470358
Base 9303729303789
Base 1019991101999710
Base 1114024111402a11
Base 12b69b12b6a512
Base 13913a13914313
Base 1473dd14740514
Base 155dcb155dd215
Base 164e17164e1d16
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