1. Numbers
  2. Compare 11987 vs 11990

Compare 11987 vs 11990

Property1198711990
Typeprimecomposite number
Unique factors14
Total factors14
Prime factorization11987121 × 51 × 111 × 1091
Prime factorization119872 × 5 × 11 × 109
Divisors count216
Divisors1, 119871, 2, 5, 10, 11, 22, 55, 109, 110, 218, 545, 1090, 1199, 2398, 5995, 11990
Number of properties40
Chen primes736th 
Isolated primes969th 
Primes1438th 
Sexy primes (2nd member)462nd 
Roman numberals  
Base 2101110110100112101110110101102
Base 312110222231211100023
Base 42323103423231124
Base 534042253404305
Base 613125561313026
Base 7466437466467
Base 8273238273268
Base 9173889174029
Base 1011987101199010
Base 11900811901011
Base 126b2b126b3212
Base 1355c11355c413
Base 14452314452614
Base 15384215384515
Base 162ed3162ed616
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