1. Numbers
  2. Compare 128991 vs 128993

Compare 128991 vs 128993

Property128991128993
Typecomposite numberprime
Unique factors41
Total factors41
Prime factorization31 × 191 × 311 × 7311289931
Prime factorization3 × 19 × 31 × 73128993
Divisors count162
Divisors1, 3, 19, 31, 57, 73, 93, 219, 589, 1387, 1767, 2263, 4161, 6789, 42997, 1289911, 128993
Number of properties09
Chen primes 5221st
Harmonic primes 4548th
Isolated primes 9063rd
Long primes 4530th
Primes 12076th
Pythagorean primes 6005th
Sexy primes (2nd member) 2997th
Sexy prime triplets (3rd member) 640th
Sophie germain primes 1448th
Roman numberals  
Base 2111110111110111112111110111111000012
Base 3201122211103201122211123
Base 413313313341331332014
Base 5131114315131114335
Base 62433103624331056
Base 71045032710450347
Base 837373783737418
Base 921584392158459
Base 101289911012899310
Base 1188a051188a0711
Base 1262793126279512
Base 1346935134693713
Base 1435019143501b14
Base 1528346152834815
Base 161f7df161f7e116
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