Compare 17 vs 40

Typeprimecomposite number
Unique factors12
Total factors14
Prime factorization17123 × 51
Prime factorization172 × 2 × 2 × 5
Divisors count28
Divisors1, 171, 2, 4, 5, 8, 10, 20, 40
Number of properties360
Chen primes7th 
Class 1+ primes6th 
Cousin primes (2nd member)3rd 
Fermat primes3rd 
Genocchi primes1st 
Good primes3rd 
Harmonic primes3rd 
Left-truncatable primes6th 
Leyland primes2nd 
Long primes2nd 
Multiplicative primes6th 
Pierpont primes6th 
Pierpont primes of the 2nd kind6th 
Prime quadruplets (3rd member)2nd 
Prime quintuplet 1s (4th member)1st 
Prime quintuplet 2s (3rd member)2nd 
Prime quintuplet 2s (5th member)1st 
Prime sextuplets (4th member)1st 
Prime triplets (1st member)5th 
Prime triplets (2nd member)4th 
Prime triplets (3rd member)3rd 
Proth primes4th 
Pythagorean primes3rd 
Quartan primes2nd 
Sexy primes (1st member)5th 
Sexy primes (2nd member)3rd 
Sexy prime quadrupletss (2nd member)2nd 
Sexy prime quadrupletss (3rd member)1st 
Sexy prime triplets (1st member)4th 
Sexy prime triplets (2nd member)3rd 
Sexy prime triplets (3rd member)1st 
Solinas primes6th 
Super primes4th 
Twin primes (1st member)4th 
Roman numberalsXVIIXL
Base 21000121010002
Base 3122311113
Base 410142204
Base 53251305
Base 62561046
Base 7237557
Base 8218508
Base 9189449
Base 1017104010
Base 1116113711
Base 1215123412
Base 1314133113
Base 1413142c14
Base 1512152a15
Base 1611162816
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