1. Numbers
  2. Compare 19891 vs 19993

Compare 19891 vs 19993

Property1989119993
Typeprimeprime
Unique factors11
Total factors11
Prime factorization198911199931
Prime factorization1989119993
Divisors count22
Divisors1, 198911, 19993
Number of properties48
Additive primes 1050th
Cousin primes (1st member) 344th
Harmonic primes815th 
Long primes 865th
Lucky primes 367th
Palindromic primes45th 
Primes2250th2261st
Prime triplets (2nd member) 168th
Pythagorean primes 1124th
Twin primes (2nd member)340th342nd
Roman numberals  
Base 210011011011001121001110000110012
Base 31000021201310001021113
Base 4103123034103201214
Base 51114031511144335
Base 623203162323216
Base 711166471122017
Base 8466638470318
Base 9302519303749
Base 1019891101999310
Base 1113a43111402611
Base 12b61712b6a112
Base 13909113913c13
Base 14736b14740114
Base 155d61155dcd15
Base 164db3164e1916
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