1. Numbers
  2. Compare 19991 vs 19995

Compare 19991 vs 19995

Property1999119995
Typeprimecomposite number
Unique factors14
Total factors14
Prime factorization19991131 × 51 × 311 × 431
Prime factorization199913 × 5 × 31 × 43
Divisors count216
Divisors1, 199911, 3, 5, 15, 31, 43, 93, 129, 155, 215, 465, 645, 1333, 3999, 6665, 19995
Number of properties90
Additive primes1049th 
Chen primes1111th 
Harmonic primes820th 
Palindromic primes46th 
Primes2260th 
Prime triplets (1st member)168th 
Sexy primes (1st member)693rd 
Sophie germain primes326th 
Twin primes (1st member)342nd 
Roman numberals  
Base 210011100001011121001110000110112
Base 31000102102310001021203
Base 4103201134103201234
Base 51114431511144405
Base 623231562323236
Base 711216671122037
Base 8470278470338
Base 9303729303769
Base 1019991101999510
Base 1114024111402811
Base 12b69b12b6a312
Base 13913a13914113
Base 1473dd14740314
Base 155dcb155dd015
Base 164e17164e1b16
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