Compare 23 vs 30

Typeprimecomposite number
Unique factors13
Total factors13
Prime factorization23121 × 31 × 51
Prime factorization232 × 3 × 5
Divisors count28
Divisors1, 231, 2, 3, 5, 6, 10, 15, 30
Number of properties300
Additive primes6th 
Chen primes9th 
Class 1+ primes7th 
Cousin primes (2nd member)4th 
Factorial primes5th 
Happy primes4th 
Harmonic primes4th 
Isolated primes2nd 
Kynea primes3rd 
Left-truncatable primes7th 
Long primes4th 
Pierpont primes of the 2nd kind7th 
Prime quintuplet 2s (5th member)2nd 
Prime sextuplets (6th member)1st 
Prime triplets (3rd member)5th 
Right-truncatable primes5th 
Safe primes4th 
Sexy primes (1st member)6th 
Sexy primes (2nd member)5th 
Sexy prime quadrupletss (3rd member)2nd 
Sexy prime quadrupletss (4th member)1st 
Sexy prime triplets (2nd member)4th 
Sexy prime triplets (3rd member)3rd 
Solinas primes8th 
Sophie germain primes5th 
Thabit primes4th 
Two-sided primes5th 
Wedderburn-etherington primes4th 
Woodall primes2nd 
Roman numberalsXXIIIXXX
Base 2101112111102
Base 3212310103
Base 411341324
Base 54351105
Base 6356506
Base 7327427
Base 8278368
Base 9259339
Base 1023103010
Base 1121112811
Base 121b122612
Base 131a132413
Base 1419142214
Base 1518152015
Base 1617161e16
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