Compare 28001 vs 28001

Property2800128001
Typeprimeprime
Unique factors11
Total factors11
Prime factorization280011280011
Prime factorization2800128001
Divisors count22
Divisors1, 280011, 28001
Number of properties77
Additive primes1401st1401st
Chen primes1486th1486th
Cousin primes (2nd member)447th447th
Isolated primes2165th2165th
Primes3056th3056th
Pythagorean primes1523rd1523rd
Sophie germain primes424th424th
Roman numberals  
Base 211011010110000121101101011000012
Base 31102102002311021020023
Base 4123112014123112014
Base 51344001513440015
Base 633334563333456
Base 714443171444317
Base 8665418665418
Base 9423629423629
Base 1028001102800110
Base 111a046111a04611
Base 1214255121425512
Base 13c98c13c98c13
Base 14a2c114a2c114
Base 15846b15846b15
Base 166d61166d6116
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