1. Numbers
  2. Compare 1217 vs 1221

Compare 1217 vs 1221

Property12171221
Typeprimecomposite number
Unique factors13
Total factors13
Prime factorization1217131 × 111 × 371
Prime factorization12173 × 11 × 37
Divisors count28
Divisors1, 12171, 3, 11, 33, 37, 111, 407, 1221
Number of properties120
Additive primes107th 
Chen primes131st 
Cousin primes (2nd member)45th 
Emirps53rd 
Isolated primes118th 
Long primes76th 
Primes199th 
Proth primes19th 
Pythagorean primes98th 
Sexy primes (1st member)86th 
Sexy prime triplets (1st member)33rd 
Super primes46th 
Roman numberalsMCCXVIIMCCXXI
Base 2100110000012100110001012
Base 31200002312000203
Base 410300141030114
Base 5143325143415
Base 65345653536
Base 73356733637
Base 82301823058
Base 91602916069
Base 10121710122110
Base 11a0711a1011
Base 128551285912
Base 137281372c13
Base 1462d1463314
Base 155621556615
Base 164c1164c516
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