1. Numbers
  2. Compare 28142 vs 28151

Compare 28142 vs 28151

Property2814228151
Typesemiprimeprime
Unique factors21
Total factors21
Prime factorization21 × 140711281511
Prime factorization2 × 1407128151
Divisors count42
Divisors1, 2, 14071, 281421, 28151
Number of properties15
Additive primes 1405th
Chen primes 1492nd
Harmonic primes 1145th
Isolated primes 2175th
Primes 3070th
Semiprimes7017th 
Roman numberals  
Base 211011011110111021101101111101112
Base 31102121022311021211223
Base 4123132324123133134
Base 51400032514001015
Base 633414263341556
Base 714502271450347
Base 8667568667678
Base 9425389425489
Base 1028142102815110
Base 111a164111a17211
Base 1214352121435b12
Base 13ca6a13ca7613
Base 14a38214a38b14
Base 15851215851b15
Base 166dee166df716
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