1. Numbers
  2. Compare 19991 vs 20549

Compare 19991 vs 20549

Property1999120549
Typeprimeprime
Unique factors11
Total factors11
Prime factorization199911205491
Prime factorization1999120549
Divisors count22
Divisors1, 199911, 20549
Number of properties97
Additive primes1049th 
Chen primes1111th1141st
Harmonic primes820th846th
Long primes 884th
Palindromic primes46th 
Primes2260th2319th
Prime triplets (1st member)168th 
Pythagorean primes 1155th
Sexy primes (1st member)693rd 
Sexy primes (2nd member) 707th
Sophie germain primes326th 
Twin primes (1st member)342nd350th
Roman numberals  
Base 210011100001011121010000010001012
Base 31000102102310010120023
Base 4103201134110010114
Base 51114431511241445
Base 623231562350456
Base 711216671136247
Base 8470278501058
Base 9303729311629
Base 1019991102054910
Base 1114024111449111
Base 12b69b12ba8512
Base 13913a13947913
Base 1473dd1476bb14
Base 155dcb15614e15
Base 164e1716504516
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