1. Numbers
  2. Compare 20971 vs 20981

Compare 20971 vs 20981

Property2097120981
Typesemiprimeprime
Unique factors21
Total factors21
Prime factorization671 × 3131209811
Prime factorization67 × 31320981
Divisors count42
Divisors1, 67, 313, 209711, 20981
Number of properties15
Chen primes 1161st
Good primes 265th
Primes 2359th
Pythagorean primes 1172nd
Semiprimes5319th 
Twin primes (1st member) 357th
Roman numberals  
Base 210100011110101121010001111101012
Base 31001202201310012100023
Base 4110132234110133114
Base 51132341511324115
Base 624103162410456
Base 711506671151127
Base 8507538507658
Base 9316819317029
Base 1020971102098110
Base 1114835111484411
Base 1210177121018512
Base 13971213971c13
Base 1478dd14790914
Base 15633115633b15
Base 1651eb1651f516
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