1. Numbers
  2. Compare 1997 vs 2153

Compare 1997 vs 2153

Property19972153
Typeprimeprime
Unique factors11
Total factors11
Prime factorization1997121531
Prime factorization19972153
Divisors count22
Divisors1, 19971, 2153
Number of properties106
Additive primes 170th
Chen primes185th198th
Cousin primes (2nd member)64th 
Good primes64th 
Isolated primes 192nd
Left-truncatable primes62nd 
Long primes 126th
Primes302nd325th
Prime triplets (1st member)50th 
Prime triplets (2nd member)49th 
Pythagorean primes147th158th
Sexy primes (1st member)129th 
Twin primes (1st member)61st 
Roman numberalsMCMXCVIIMMCLIII
Base 21111100110121000011010012
Base 32201222322212023
Base 413303142012214
Base 5304425321035
Base 6131256135456
Base 75552761647
Base 83715841518
Base 92658928529
Base 10199710215310
Base 11155611168811
Base 1211a51212b512
Base 13ba813c9813
Base 14a2914adb14
Base 158d21598815
Base 167cd1686916
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