1. Numbers
  2. Compare 131 vs 181

Compare 131 vs 181

Property131181
Typeprimeprime
Unique factors11
Total factors11
Prime factorization13111811
Prime factorization131181
Divisors count22
Divisors1, 1311, 181
Number of properties128
Additive primes17th 
Centered square primes 6th
Chen primes26th33rd
Cousin primes (2nd member)12th 
Dihedral primes 5th
Isolated primes13th 
Long primes12th16th
Multiplicative primes10th 
Palindromic primes7th9th
Primes32nd42nd
Pythagorean primes 19th
Sexy primes (1st member)20th 
Solinas primes23rd 
Sophie germain primes12th 
Twin primes (2nd member) 13th
Ulam primes8th 
Roman numberalsCXXXICLXXXI
Base 2100000112101101012
Base 3112123202013
Base 42003423114
Base 51011512115
Base 633565016
Base 724573467
Base 820382658
Base 915592219
Base 101311018110
Base 1110a1115511
Base 12ab1213112
Base 13a11310c13
Base 149514cd14
Base 158b15c115
Base 168316b516
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