Compare 10 vs 13

Unique factors21
Total factors21
Prime factorization21 × 51131
Prime factorization2 × 513
Divisors count42
Divisors1, 2, 5, 101, 13
Number of properties132
Centered square primes 2nd
Chen primes 6th
Cousin primes (1st member) 3rd
Cuban primes 2 1st
Emirps 1st
Fibonacci primes 4th
Happy primes 2nd
Harmonic primes 2nd
Left-truncatable primes 5th
Lucky primes 3rd
Multiplicative primes 5th
Pierpont primes 5th
Primes 6th
Prime quadruplets (2nd member) 2nd
Prime quadruplets (4th member) 1st
Prime quintuplet 1s (3rd member) 1st
Prime quintuplet 2s (2nd member) 2nd
Prime quintuplet 2s (4th member) 1st
Prime sextuplets (3rd member) 1st
Prime triplets (1st member) 4th
Prime triplets (2nd member) 3rd
Prime triplets (3rd member) 2nd
Proth primes 3rd
Pythagorean primes 2nd
Sexy primes (1st member) 4th
Sexy primes (2nd member) 2nd
Sexy prime triplets (2nd member) 2nd
Solinas primes 5th
Thabit primes of the 2nd kind 2nd
Twin primes (2nd member) 3rd
Ulam primes 4th
Wilson primes 2nd
Roman numberalsXXIII
Base 21010211012
Base 310131113
Base 4224314
Base 5205235
Base 6146216
Base 7137167
Base 8128158
Base 9119149
Base 1010101310
Base 11a111211
Base 12a121112
Base 13a131013
Base 14a14d14
Base 15a15d15
Base 16a16d16
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