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  2. Compare 1997 vs 2000

Compare 1997 vs 2000

Property19972000
Typeprimecomposite number
Unique factors12
Total factors17
Prime factorization1997124 × 53
Prime factorization19972 × 2 × 2 × 2 × 5 × 5 × 5
Divisors count220
Divisors1, 19971, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000
Number of properties100
Chen primes185th 
Cousin primes (2nd member)64th 
Good primes64th 
Left-truncatable primes62nd 
Primes302nd 
Prime triplets (1st member)50th 
Prime triplets (2nd member)49th 
Pythagorean primes147th 
Sexy primes (1st member)129th 
Twin primes (1st member)61st 
Roman numberalsMCMXCVIIMM
Base 2111110011012111110100002
Base 32201222322020023
Base 413303141331004
Base 5304425310005
Base 6131256131326
Base 75552755557
Base 83715837208
Base 92658926629
Base 10199710200010
Base 11155611155911
Base 1211a51211a812
Base 13ba813bab13
Base 14a2914a2c14
Base 158d2158d515
Base 167cd167d016
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