1. Numbers
  2. Compare 19991 vs 20123

Compare 19991 vs 20123

Property1999120123
Typeprimeprime
Unique factors11
Total factors11
Prime factorization199911201231
Prime factorization1999120123
Divisors count22
Divisors1, 199911, 20123
Number of properties96
Additive primes1049th 
Chen primes1111th 
Harmonic primes820th 
Isolated primes 1591st
Palindromic primes46th 
Primes2260th2276th
Prime triplets (1st member)168th 
Safe primes 191st
Sexy primes (1st member)693rd698th
Sexy primes (2nd member) 697th
Sexy prime triplets (2nd member) 192nd
Sophie germain primes326th 
Twin primes (1st member)342nd 
Roman numberals  
Base 210011100001011121001110100110112
Base 31000102102310001210223
Base 4103201134103221234
Base 51114431511204435
Base 623231562330556
Base 711216671124457
Base 8470278472338
Base 9303729305389
Base 1019991102012310
Base 1114024111413411
Base 12b69b12b78b12
Base 13913a13920c13
Base 1473dd14749514
Base 155dcb155e6815
Base 164e17164e9b16
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