1. Numbers
  2. Compare 28405 vs 28409

Compare 28405 vs 28409

Property2840528409
Typecomposite numberprime
Unique factors41
Total factors41
Prime factorization51 × 131 × 191 × 231284091
Prime factorization5 × 13 × 19 × 2328409
Divisors count162
Divisors1, 5, 13, 19, 23, 65, 95, 115, 247, 299, 437, 1235, 1495, 2185, 5681, 284051, 28409
Number of properties06
Additive primes 1413th
Chen primes 1504th
Primes 3091st
Pythagorean primes 1538th
Sexy primes (2nd member) 909th
Twin primes (1st member) 453rd
Roman numberals  
Base 211011101111010121101110111110012
Base 31102222001311022220123
Base 4123233114123233214
Base 51402110514021145
Base 633530163353056
Base 714554671455537
Base 8673658673718
Base 9428619428659
Base 1028405102840910
Base 111a383111a38711
Base 1214531121453512
Base 13cc1013cc1413
Base 14a4cd14a4d314
Base 15863a15863e15
Base 166ef5166ef916
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