1. Numbers
  2. Compare 19986 vs 19991

Compare 19986 vs 19991

Property1998619991
Typecomposite numberprime
Unique factors31
Total factors31
Prime factorization21 × 31 × 33311199911
Prime factorization2 × 3 × 333119991
Divisors count82
Divisors1, 2, 3, 6, 3331, 6662, 9993, 199861, 19991
Number of properties09
Additive primes 1049th
Chen primes 1111th
Harmonic primes 820th
Palindromic primes 46th
Primes 2260th
Prime triplets (1st member) 168th
Sexy primes (1st member) 693rd
Sophie germain primes 326th
Twin primes (1st member) 342nd
Roman numberals  
Base 210011100001001021001110000101112
Base 31000102020310001021023
Base 4103201024103201134
Base 51114421511144315
Base 623231062323156
Base 711216171121667
Base 8470228470278
Base 9303669303729
Base 1019986101999110
Base 111401a111402411
Base 12b69612b69b12
Base 13913513913a13
Base 1473d81473dd14
Base 155dc6155dcb15
Base 164e12164e1716
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