1. Numbers
  2. Compare 163989 vs 163991

Compare 163989 vs 163991

Property163989163991
Typecomposite numberprime
Unique factors41
Total factors51
Prime factorization32 × 71 × 191 × 13711639911
Prime factorization3 × 3 × 7 × 19 × 137163991
Divisors count242
Divisors1, 3, 7, 9, 19, 21, 57, 63, 133, 137, 171, 399, 411, 959, 1197, 1233, 2603, 2877, 7809, 8631, 18221, 23427, 54663, 1639891, 163991
Number of properties09
Additive primes 6148th
Chen primes 6398th
Cousin primes (2nd member) 1811th
Primes 15014th
Prime triplets (1st member) 717th
Prime triplets (2nd member) 716th
Sexy primes (1st member) 3637th
Sophie germain primes 1752nd
Twin primes (1st member) 1838th
Roman numberals  
Base 210100000001001010121010000000100101112
Base 3220222212003220222212023
Base 422000211142200021134
Base 5202214245202214315
Base 63303113633031156
Base 71252050712520527
Base 850022585002278
Base 926885092688529
Base 101639891016399110
Base 111022311110223311
Base 127aa99127aa9b12
Base 1359847135984913
Base 1443a971443a9914
Base 15338c915338cb15
Base 1628095162809716
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