1. Numbers
  2. Compare 1889 vs 1997

Compare 1889 vs 1997

Property18891997
Typeprimeprime
Unique factors11
Total factors11
Prime factorization1889119971
Prime factorization18891997
Divisors count22
Divisors1, 18891, 1997
Number of properties510
Chen primes178th185th
Cousin primes (2nd member) 64th
Good primes 64th
Isolated primes175th 
Left-truncatable primes 62nd
Primes290th302nd
Prime triplets (1st member) 50th
Prime triplets (2nd member) 49th
Pythagorean primes140th147th
Sexy primes (1st member) 129th
Sophie germain primes57th 
Twin primes (1st member) 61st
Roman numberalsMDCCCLXXXIXMCMXCVII
Base 2111011000012111110011012
Base 32120222322012223
Base 413120141330314
Base 5300245304425
Base 6124256131256
Base 75336755527
Base 83541837158
Base 92528926589
Base 10188910199710
Base 11146811155611
Base 1211151211a512
Base 13b2413ba813
Base 1498d14a2914
Base 1585e158d215
Base 16761167cd16
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