1. Numbers
  2. Compare 1801 vs 1809

Compare 1801 vs 1809

Property18011809
Typeprimecomposite number
Unique factors12
Total factors14
Prime factorization1801133 × 671
Prime factorization18013 × 3 × 3 × 67
Divisors count28
Divisors1, 18011, 3, 9, 27, 67, 201, 603, 1809
Number of properties70
Chen primes174th 
Cuban primes 113th 
Harmonic primes99th 
Isolated primes168th 
Lucky primes66th 
Primes279th 
Pythagorean primes136th 
Roman numberalsMDCCCIMDCCCIX
Base 2111000010012111000100012
Base 32110201321110003
Base 413002141301014
Base 5242015242145
Base 6122016122136
Base 75152751637
Base 83411834218
Base 92421924309
Base 10180110180910
Base 1113981113a511
Base 12106112106912
Base 13a8713a9213
Base 149291493314
Base 158011580915
Base 167091671116
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