1. Numbers
  2. Compare 1999 vs 2000

Compare 1999 vs 2000

Property19992000
Typeprimecomposite number
Unique factors12
Total factors17
Prime factorization1999124 × 53
Prime factorization19992 × 2 × 2 × 2 × 5 × 5 × 5
Divisors count220
Divisors1, 19991, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000
Number of properties80
Centered triangular primes10th 
Cousin primes (1st member)65th 
Primes303rd 
Prime triplets (2nd member)50th 
Prime triplets (3rd member)49th 
Sexy primes (2nd member)128th 
Sexy prime triplets (3rd member)50th 
Twin primes (2nd member)61st 
Roman numberalsMCMXCIXMM
Base 2111110011112111110100002
Base 32202001322020023
Base 413303341331004
Base 5304445310005
Base 6131316131326
Base 75554755557
Base 83717837208
Base 92661926629
Base 10199910200010
Base 11155811155911
Base 1211a71211a812
Base 13baa13bab13
Base 14a2b14a2c14
Base 158d4158d515
Base 167cf167d016
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