1. Numbers
  2. Compare 12813 vs 12821

Compare 12813 vs 12821

Property1281312821
Typesemiprimeprime
Unique factors21
Total factors21
Prime factorization31 × 42711128211
Prime factorization3 × 427112821
Divisors count42
Divisors1, 3, 4271, 128131, 12821
Number of properties18
Chen primes 776th
Harmonic primes 547th
Long primes 594th
Palindromic primes 28th
Primes 1528th
Pythagorean primes 757th
Semiprimes3332nd 
Sophie germain primes 232nd
Twin primes (1st member) 245th
Roman numberals  
Base 2110010000011012110010000101012
Base 312212012031221202123
Base 43020031430201114
Base 540222354022415
Base 613515361352056
Base 7522337522447
Base 8310158310258
Base 9185169185259
Base 1012813101282110
Base 1196991196a611
Base 1274b912750512
Base 135aa8135ab313
Base 14495314495b14
Base 153be3153beb15
Base 16320d16321516
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