Compare 28102 vs 28111

Property2810228111
Typesemiprimeprime
Unique factors21
Total factors21
Prime factorization21 × 140511281111
Prime factorization2 × 1405128111
Divisors count42
Divisors1, 2, 14051, 281021, 28111
Number of properties15
Additive primes 1404th
Chen primes 1491st
Harmonic primes 1144th
Primes 3068th
Semiprimes7004th 
Twin primes (2nd member) 448th
Roman numberals  
Base 211011011100011021101101110011112
Base 31102112211311021200113
Base 4123130124123130334
Base 51344402513444215
Base 633403463340516
Base 714463471446467
Base 8667068667178
Base 9424849425049
Base 1028102102811110
Base 111a128111a13611
Base 121431a121432712
Base 13ca3913ca4513
Base 14a35414a35d14
Base 1584d71584e115
Base 166dc6166dcf16
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