1. Numbers
  2. Compare 19991 vs 20101

Compare 19991 vs 20101

Property1999120101
Typeprimeprime
Unique factors11
Total factors11
Prime factorization199911201011
Prime factorization1999120101
Divisors count22
Divisors1, 199911, 20101
Number of properties98
Additive primes1049th 
Chen primes1111th1117th
Harmonic primes820th 
Isolated primes 1587th
Long primes 869th
Lucky primes 370th
Palindromic primes46th 
Primes2260th2272nd
Prime triplets (1st member)168th 
Pythagorean primes 1129th
Sexy primes (1st member)693rd695th
Sexy prime triplets (1st member) 191st
Sophie germain primes326th 
Twin primes (1st member)342nd 
Roman numberals  
Base 210011100001011121001110100001012
Base 31000102102310001201113
Base 4103201134103220114
Base 51114431511204015
Base 623231562330216
Base 711216671124147
Base 8470278472058
Base 9303729305149
Base 1019991102010110
Base 1114024111411411
Base 12b69b12b77112
Base 13913a1391c313
Base 1473dd14747b14
Base 155dcb155e5115
Base 164e17164e8516
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