1. Numbers
  2. Compare 19813 vs 19993

Compare 19813 vs 19993

Property1981319993
Typeprimeprime
Unique factors11
Total factors11
Prime factorization198131199931
Prime factorization1981319993
Divisors count22
Divisors1, 198131, 19993
Number of properties68
Additive primes 1050th
Cousin primes (1st member) 344th
Emirps624th 
Harmonic primes811th 
Isolated primes1567th 
Long primes 865th
Lucky primes 367th
Primes2242nd2261st
Prime triplets (2nd member) 168th
Pythagorean primes1114th1124th
Sexy primes (1st member)689th 
Twin primes (2nd member) 342nd
Roman numberals  
Base 210011010110010121001110000110012
Base 31000011211310001021113
Base 4103112114103201214
Base 51113223511144335
Base 623142162323216
Base 711152371122017
Base 8465458470318
Base 9301549303749
Base 1019813101999310
Base 1113982111402611
Base 12b57112b6a112
Base 13903113913c13
Base 14731314740114
Base 155d0d155dcd15
Base 164d65164e1916
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