1. Numbers
  2. Compare 199811 vs 199909

Compare 199811 vs 199909

Property199811199909
Typeprimeprime
Unique factors11
Total factors11
Prime factorization19981111999091
Prime factorization199811199909
Divisors count22
Divisors1, 1998111, 199909
Number of properties84
Additive primes7214th7220th
Chen primes7520th 
Cousin primes (2nd member)2134th 
Harmonic primes6753rd 
Isolated primes 13661st
Long primes6734th 
Primes17970th17978th
Prime triplets (2nd member)840th 
Pythagorean primes 8974th
Twin primes (1st member)2159th 
Roman numberals  
Base 211000011001000001121100001100111001012
Base 310101100210231010110200013
Base 430030200343003032114
Base 5223432215223441145
Base 64141015641413016
Base 71461353714615537
Base 860620386063458
Base 933407293342019
Base 101998111019990910
Base 111271371112721611
Base 129776b129783112
Base 136cc41136ccb813
Base 1452b631452bd314
Base 153e30b153e37415
Base 1630c831630ce516
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