1. Numbers
  2. Compare 19 vs 20

Compare 19 vs 20

Property1920
Typeprimecomposite number
Unique factors12
Total factors13
Prime factorization19122 × 51
Prime factorization192 × 2 × 5
Divisors count26
Divisors1, 191, 2, 4, 5, 10, 20
Number of properties180
Centered triangular primes1st 
Chen primes8th 
Cousin primes (1st member)4th 
Cuban primes 12nd 
Happy primes3rd 
Long primes3rd 
Pierpont primes7th 
Primes8th 
Prime quadruplets (4th member)2nd 
Prime quintuplet 1s (5th member)1st 
Prime quintuplet 2s (4th member)2nd 
Prime sextuplets (5th member)1st 
Prime triplets (2nd member)5th 
Prime triplets (3rd member)4th 
Sexy primes (2nd member)4th 
Sexy prime triplets (3rd member)2nd 
Solinas primes7th 
Twin primes (2nd member)4th 
Roman numberalsXIXXX
Base 2100112101002
Base 320132023
Base 410341104
Base 5345405
Base 6316326
Base 7257267
Base 8238248
Base 9219229
Base 1019102010
Base 1118111911
Base 1217121812
Base 1316131713
Base 1415141614
Base 1514151515
Base 1613161416
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