Compare 18 vs 23

Property1823
Typecomposite numberprime
Unique factors21
Total factors31
Prime factorization21 × 32231
Prime factorization2 × 3 × 323
Divisors count62
Divisors1, 2, 3, 6, 9, 181, 23
Number of properties030
Additive primes 6th
Chen primes 9th
Class 1+ primes 7th
Cousin primes (2nd member) 4th
Factorial primes 5th
Happy primes 4th
Harmonic primes 4th
Isolated primes 2nd
Kynea primes 3rd
Left-truncatable primes 7th
Long primes 4th
Pierpont primes of the 2nd kind 7th
Primes 9th
Prime quintuplet 2s (5th member) 2nd
Prime sextuplets (6th member) 1st
Prime triplets (3rd member) 5th
Right-truncatable primes 5th
Safe primes 4th
Sexy primes (1st member) 6th
Sexy primes (2nd member) 5th
Sexy prime quadrupletss (4th member) 1st
Sexy prime quadrupletss (3rd member) 2nd
Sexy prime triplets (2nd member) 4th
Sexy prime triplets (3rd member) 3rd
Solinas primes 8th
Sophie germain primes 5th
Thabit primes 4th
Two-sided primes 5th
Wedderburn-etherington primes 4th
Woodall primes 2nd
Roman numberalsXVIIIXXIII
Base 2100102101112
Base 320032123
Base 410241134
Base 5335435
Base 6306356
Base 7247327
Base 8228278
Base 9209259
Base 1018102310
Base 1117112111
Base 1216121b12
Base 1315131a13
Base 1414141914
Base 1513151815
Base 1612161716
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