1. Numbers
  2. Compare 19991 vs 21013

Compare 19991 vs 21013

Property1999121013
Typeprimeprime
Unique factors11
Total factors11
Prime factorization199911210131
Prime factorization1999121013
Divisors count22
Divisors1, 199911, 21013
Number of properties913
Additive primes1049th1095th
Centered square primes 37th
Chen primes1111th 
Cousin primes (1st member) 358th
Harmonic primes820th868th
Lucky primes 384th
Palindromic primes46th 
Primes2260th2363rd
Prime quadruplets (2nd member) 20th
Prime quintuplet 2s (2nd member) 7th
Prime triplets (1st member)168th176th
Prime triplets (2nd member) 175th
Pythagorean primes 1174th
Sexy primes (1st member)693rd715th
Sophie germain primes326th 
Twin primes (1st member)342nd 
Twin primes (2nd member) 358th
Roman numberals  
Base 210011100001011121010010000101012
Base 31000102102310012110213
Base 4103201134110201114
Base 51114431511330235
Base 623231562411416
Base 711216671151567
Base 8470278510258
Base 9303729317379
Base 1019991102101310
Base 1114024111487311
Base 12b69b12101b112
Base 13913a13974513
Base 1473dd14792d14
Base 155dcb15635d15
Base 164e1716521516
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