1. Numbers
  2. Compare 28181 vs 28184

Compare 28181 vs 28184

Property2818128184
Typeprimecomposite number
Unique factors13
Total factors15
Prime factorization28181123 × 131 × 2711
Prime factorization281812 × 2 × 2 × 13 × 271
Divisors count216
Divisors1, 281811, 2, 4, 8, 13, 26, 52, 104, 271, 542, 1084, 2168, 3523, 7046, 14092, 28184
Number of properties50
Chen primes1493rd 
Harmonic primes1147th 
Primes3072nd 
Pythagorean primes1529th 
Twin primes (1st member)449th 
Roman numberals  
Base 211011100001010121101110000110002
Base 31102122202311021222123
Base 4123201114123201204
Base 51400211514002145
Base 633424563342526
Base 714510671451127
Base 8670258670308
Base 9425829425859
Base 1028181102818410
Base 111a19a111a1a211
Base 1214385121438812
Base 13ca9a13caa013
Base 14a3ad14a3b214
Base 15853b15853e15
Base 166e15166e1816
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