1. Numbers
  2. Compare 18911 vs 18912

Compare 18911 vs 18912

Property1891118912
Typeprimecomposite number
Unique factors13
Total factors17
Prime factorization18911125 × 31 × 1971
Prime factorization189112 × 2 × 2 × 2 × 2 × 3 × 197
Divisors count224
Divisors1, 189111, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 197, 394, 591, 788, 1182, 1576, 2364, 3152, 4728, 6304, 9456, 18912
Number of properties100
Centered decagonal primes32nd 
Chen primes1066th 
Emirps590th 
Good primes247th 
Harmonic primes775th 
Primes2151st 
Prime quadruplets (1st member)18th 
Prime triplets (1st member)161st 
Sexy primes (1st member)658th 
Twin primes (1st member)326th 
Roman numberals  
Base 210010011101111121001001111000002
Base 322122110232212211103
Base 4102131334102132004
Base 51101121511011225
Base 622331562233206
Base 710606471060657
Base 8447378447408
Base 9278429278439
Base 1018911101891210
Base 1113232111323311
Base 12ab3b12ab4012
Base 1387b91387ba13
Base 146c6b146c6c14
Base 15590b15590c15
Base 1649df1649e016
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