1. Numbers
  2. Compare 1997 vs 2111

Compare 1997 vs 2111

Property19972111
Typeprimeprime
Unique factors11
Total factors11
Prime factorization1997121111
Prime factorization19972111
Divisors count22
Divisors1, 19971, 2111
Number of properties108
Additive primes 166th
Chen primes185th195th
Cousin primes (2nd member)64th 
Good primes64th 
Happy primes 58th
Harmonic primes 117th
Left-truncatable primes62nd 
Multiplicative primes 18th
Primes302nd318th
Prime triplets (1st member)50th 
Prime triplets (2nd member)49th 
Pythagorean primes147th 
Sexy primes (1st member)129th 
Solinas primes 59th
Twin primes (1st member)61st65th
Roman numberalsMCMXCVIIMMCXI
Base 21111100110121000001111112
Base 32201222322200123
Base 413303142003334
Base 5304425314215
Base 6131256134356
Base 75552761047
Base 83715840778
Base 92658928059
Base 10199710211110
Base 11155611164a11
Base 1211a512127b12
Base 13ba813c6513
Base 14a2914aab14
Base 158d21595b15
Base 167cd1683f16
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