1. Numbers
  2. Compare 19991 vs 20001

Compare 19991 vs 20001

Property1999120001
Typeprimecomposite number
Unique factors13
Total factors13
Prime factorization19991131 × 591 × 1131
Prime factorization199913 × 59 × 113
Divisors count28
Divisors1, 199911, 3, 59, 113, 177, 339, 6667, 20001
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 210011100001011121001110001000012
Base 31000102102310001022103
Base 4103201134103202014
Base 51114431511200015
Base 623231562323336
Base 711216671122127
Base 8470278470418
Base 9303729303839
Base 1019991102000110
Base 1114024111403311
Base 12b69b12b6a912
Base 13913a13914713
Base 1473dd14740914
Base 155dcb155dd615
Base 164e17164e2116
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