1. Numbers
  2. Compare 1997 vs 2131

Compare 1997 vs 2131

Property19972131
Typeprimeprime
Unique factors11
Total factors11
Prime factorization1997121311
Prime factorization19972131
Divisors count22
Divisors1, 19971, 2131
Number of properties105
Additive primes 168th
Chen primes185th 
Cousin primes (2nd member)64th 
Good primes64th 
Left-truncatable primes62nd 
Primes302nd321st
Prime triplets (1st member)50th 
Prime triplets (2nd member)49th 
Pythagorean primes147th 
Sexy primes (1st member)129th134th
Sexy prime triplets (1st member) 51st
Twin primes (1st member)61st 
Twin primes (2nd member) 66th
Roman numberalsMCMXCVIIMMCXXXI
Base 21111100110121000010100112
Base 32201222322202213
Base 413303142011034
Base 5304425320115
Base 6131256135116
Base 75552761337
Base 83715841238
Base 92658928279
Base 10199710213110
Base 11155611166811
Base 1211a512129712
Base 13ba813c7c13
Base 14a2914ac314
Base 158d21597115
Base 167cd1685316
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