Compare 28181 vs 28181

Property2818128181
Typeprimeprime
Unique factors11
Total factors11
Prime factorization281811281811
Prime factorization2818128181
Divisors count22
Divisors1, 281811, 28181
Number of properties55
Chen primes1493rd1493rd
Harmonic primes1147th1147th
Primes3072nd3072nd
Pythagorean primes1529th1529th
Twin primes (1st member)449th449th
Roman numberals  
Base 211011100001010121101110000101012
Base 31102122202311021222023
Base 4123201114123201114
Base 51400211514002115
Base 633424563342456
Base 714510671451067
Base 8670258670258
Base 9425829425829
Base 1028181102818110
Base 111a19a111a19a11
Base 1214385121438512
Base 13ca9a13ca9a13
Base 14a3ad14a3ad14
Base 15853b15853b15
Base 166e15166e1516
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