1. Numbers
  2. Compare 1999 vs 1999

Compare 1999 vs 1999

Property19991999
Typeprimeprime
Unique factors11
Total factors11
Prime factorization1999119991
Prime factorization19991999
Divisors count22
Divisors1, 19991, 1999
Number of properties88
Centered triangular primes10th10th
Cousin primes (1st member)65th65th
Primes303rd303rd
Prime triplets (2nd member)50th50th
Prime triplets (3rd member)49th49th
Sexy primes (2nd member)128th128th
Sexy prime triplets (3rd member)50th50th
Twin primes (2nd member)61st61st
Roman numberalsMCMXCIXMCMXCIX
Base 2111110011112111110011112
Base 32202001322020013
Base 413303341330334
Base 5304445304445
Base 6131316131316
Base 75554755547
Base 83717837178
Base 92661926619
Base 10199910199910
Base 11155811155811
Base 1211a71211a712
Base 13baa13baa13
Base 14a2b14a2b14
Base 158d4158d415
Base 167cf167cf16
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