Compare 31 vs 58

Unique factors12
Total factors12
Prime factorization31121 × 291
Prime factorization312 × 29
Divisors count24
Divisors1, 311, 2, 29, 58
Number of properties181
Centered decagonal primes2nd 
Centered triangular primes2nd 
Chen primes11th 
Class 1+ primes8th 
Euclid primes4th 
Happy primes5th 
Lucky primes4th 
Mersenne primes3rd 
Multiplicative primes7th 
Pierpont primes of the 2nd kind8th 
Right-truncatable primes7th 
Semiprimes 21st
Sexy primes (1st member)7th 
Sexy prime triplets (1st member)5th 
Solinas primes10th 
Super primes5th 
Twin primes (2nd member)5th 
Roman numberalsXXXILVIII
Base 21111121110102
Base 31011320113
Base 413343224
Base 511152135
Base 65161346
Base 74371127
Base 8378728
Base 9349649
Base 1031105810
Base 1129115311
Base 1227124a12
Base 1325134613
Base 1423144214
Base 1521153d15
Base 161f163a16
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