1. Numbers
  2. Compare 19889 vs 19890

Compare 19889 vs 19890

Property1988919890
Typeprimecomposite number
Unique factors15
Total factors16
Prime factorization19889121 × 32 × 51 × 131 × 171
Prime factorization198892 × 3 × 3 × 5 × 13 × 17
Divisors count248
Divisors1, 198891, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 26, 30, 34, 39, 45, 51, 65, 78, 85, 90, 102, 117, 130, 153, 170, 195, 221, 234, 255, 306, 390, 442, 510, 585, 663, 765, 1105, 1170, 1326, 1530, 1989, 2210, 3315, 3978, 6630, 9945, 19890
Number of properties80
Chen primes1106th 
Good primes255th 
Happy primes374th 
Harmonic primes814th 
Primes2249th 
Pythagorean primes1118th 
Sophie germain primes323rd 
Twin primes (1st member)340th 
Roman numberals  
Base 210011011011000121001101101100102
Base 31000021122310000212003
Base 4103123014103123024
Base 51114024511140305
Base 623202562320306
Base 711166271116637
Base 8466618466628
Base 9302489302509
Base 1019889101989010
Base 1113a411113a4211
Base 12b61512b61612
Base 13908c13909013
Base 14736914736a14
Base 155d5e155d6015
Base 164db1164db216
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