1. Numbers
  2. Compare 19421 vs 19991

Compare 19421 vs 19991

Property1942119991
Typeprimeprime
Unique factors11
Total factors11
Prime factorization194211199911
Prime factorization1942119991
Divisors count22
Divisors1, 194211, 19991
Number of properties189
Additive primes1021st1049th
Chen primes1088th1111th
Cousin primes (2nd member)340th 
Emirps605th 
Good primes254th 
Happy primes371st 
Harmonic primes 820th
Long primes838th 
Palindromic primes 46th
Primes2199th2260th
Prime quadruplets (1st member)19th 
Prime quintuplet 1s (2nd member)8th 
Prime quintuplet 2s (1st member)6th 
Prime sextuplets (2nd member)4th 
Prime triplets (1st member)165th168th
Prime triplets (2nd member)164th 
Pythagorean primes1091st 
Sexy primes (1st member)672nd693rd
Sexy prime triplets (1st member)185th 
Sophie germain primes 326th
Twin primes (1st member)333rd342nd
Roman numberals  
Base 210010111101110121001110000101112
Base 3222122022310001021023
Base 4102331314103201134
Base 51110141511144315
Base 622552562323156
Base 711042371121667
Base 8457358470278
Base 9285689303729
Base 1019421101999110
Base 1113656111402411
Base 12b2a512b69b12
Base 138abc13913a13
Base 1471131473dd14
Base 155b4b155dcb15
Base 164bdd164e1716
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