1. Numbers
  2. Compare 19211 vs 19991

Compare 19211 vs 19991

Property1921119991
Typeprimeprime
Unique factors11
Total factors11
Prime factorization192111199911
Prime factorization1921119991
Divisors count22
Divisors1, 192111, 19991
Number of properties59
Additive primes 1049th
Chen primes1081st1111th
Cousin primes (2nd member)338th 
Harmonic primes 820th
Palindromic primes 46th
Primes2178th2260th
Prime triplets (1st member) 168th
Prime triplets (2nd member)163rd 
Sexy primes (1st member) 693rd
Sophie germain primes 326th
Twin primes (1st member)331st342nd
Roman numberals  
Base 210010110000101121001110000101112
Base 3222100112310001021023
Base 4102300234103201134
Base 51103321511144315
Base 622453562323156
Base 711000371121667
Base 8454138470278
Base 9283159303729
Base 1019211101999110
Base 1113485111402411
Base 12b14b12b69b12
Base 13898a13913a13
Base 1470031473dd14
Base 155a5b155dcb15
Base 164b0b164e1716
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