1. Numbers
  2. Compare 19913 vs 20981

Compare 19913 vs 20981

Property1991320981
Typeprimeprime
Unique factors11
Total factors11
Prime factorization199131209811
Prime factorization1991320981
Divisors count22
Divisors1, 199131, 20981
Number of properties105
Additive primes1045th 
Chen primes 1161st
Emirps626th 
Good primes256th265th
Isolated primes1572nd 
Long primes861st 
Primes2251st2359th
Pythagorean primes1119th1172nd
Sexy primes (1st member)691st 
Sophie germain primes324th 
Super primes335th 
Twin primes (1st member) 357th
Roman numberals  
Base 210011011100100121010001111101012
Base 31000022112310012100023
Base 4103130214110133114
Base 51114123511324115
Base 623210562410456
Base 711202571151127
Base 8467118507658
Base 9302759317029
Base 1019913102098110
Base 1113a63111484411
Base 12b635121018512
Base 1390aa13971c13
Base 14738514790914
Base 155d7815633b15
Base 164dc91651f516
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