Compare 1667 vs 1668

Property16671668
Typeprimecomposite number
Unique factors13
Total factors14
Prime factorization1667122 × 31 × 1391
Prime factorization16672 × 2 × 3 × 139
Divisors count212
Divisors1, 16671, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668
Number of properties60
Chen primes165th 
Cousin primes (2nd member)59th 
Harmonic primes92nd 
Primes262nd 
Prime triplets (2nd member)43rd 
Twin primes (1st member)53rd 
Roman numberalsMDCLXVIIMDCLXVIII
Base 2110100000112110100001002
Base 32021202320212103
Base 412200341220104
Base 5231325231335
Base 6114156114206
Base 74601746027
Base 83203832048
Base 92252922539
Base 10166710166810
Base 11128611128711
Base 12b6b12b7012
Base 139b3139b413
Base 148711487214
Base 157621576315
Base 166831668416
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