Compare 12281 vs 12287

Property1228112287
Typeprimesemiprime
Unique factors12
Total factors12
Prime factorization122811111 × 11171
Prime factorization1228111 × 1117
Divisors count24
Divisors1, 122811, 11, 1117, 12287
Number of properties61
Chen primes753rd 
Cousin primes (2nd member)238th 
Harmonic primes530th 
Isolated primes988th 
Primes1469th 
Pythagorean primes724th 
Semiprimes 3205th
Roman numberals  
Base 2101111111110012101111111111112
Base 312121121231212120023
Base 42333321423333334
Base 534311153431225
Base 613250561325156
Base 7505437505527
Base 8277718277778
Base 9177559177629
Base 1012281101228710
Base 11925511926011
Base 12713512713b12
Base 13578913579213
Base 14469314469914
Base 15398b15399215
Base 162ff9162fff16
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