1. Numbers
  2. Compare 19991 vs 21313

Compare 19991 vs 21313

Property1999121313
Typeprimeprime
Unique factors11
Total factors11
Prime factorization199911213131
Prime factorization1999121313
Divisors count22
Divisors1, 199911, 21313
Number of properties97
Additive primes1049th 
Chen primes1111th 
Cousin primes (1st member) 362nd
Good primes 267th
Harmonic primes820th 
Isolated primes 1671st
Palindromic primes46th 
Primes2260th2392nd
Prime triplets (1st member)168th179th
Pythagorean primes 1187th
Sexy primes (1st member)693rd725th
Sophie germain primes326th 
Twin primes (1st member)342nd 
Roman numberals  
Base 210011100001011121010011010000012
Base 31000102102310020201013
Base 4103201134110310014
Base 51114431511402235
Base 623231562424016
Base 711216671160657
Base 8470278515018
Base 9303729322119
Base 1019991102131310
Base 1114024111501611
Base 12b69b121040112
Base 13913a13991613
Base 1473dd147aa514
Base 155dcb1564ad15
Base 164e1716534116
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