Compare 4 vs 61

Unique factors11
Total factors21
Prime factorization22611
Prime factorization2 × 261
Divisors count32
Divisors1, 2, 41, 61
Number of properties112
Additive primes 11th
Centered decagonal primes 3rd
Centered square primes 4th
Cuban primes 1 4th
Long primes 8th
Primes 18th
Pythagorean primes 8th
Sexy primes (1st member) 12th
Sexy prime quadrupletss (1st member) 4th
Sexy prime triplets (1st member) 8th
Solinas primes 15th
Twin primes (2nd member) 7th
Roman numberalsIVLXI
Base 210021111012
Base 311320213
Base 41043314
Base 5452215
Base 6461416
Base 7471157
Base 848758
Base 949679
Base 104106110
Base 114115611
Base 124125112
Base 134134913
Base 144144514
Base 154154115
Base 164163d16
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