1. Numbers
  2. Compare 19889 vs 19897

Compare 19889 vs 19897

Property1988919897
Typeprimesemiprime
Unique factors12
Total factors12
Prime factorization1988911011 × 1971
Prime factorization19889101 × 197
Divisors count24
Divisors1, 198891, 101, 197, 19897
Number of properties81
Chen primes1106th 
Good primes255th 
Happy primes374th 
Harmonic primes814th 
Primes2249th 
Pythagorean primes1118th 
Semiprimes 5060th
Sophie germain primes323rd 
Twin primes (1st member)340th 
Roman numberals  
Base 210011011011000121001101101110012
Base 31000021122310000212213
Base 4103123014103123214
Base 51114024511140425
Base 623202562320416
Base 711166271120037
Base 8466618466718
Base 9302489302579
Base 1019889101989710
Base 1113a411113a4911
Base 12b61512b62112
Base 13908c13909713
Base 14736914737314
Base 155d5e155d6715
Base 164db1164db916
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