1. Numbers
  2. Compare 131 vs 991

Compare 131 vs 991

Property131991
Typeprimeprime
Unique factors11
Total factors11
Prime factorization13119911
Prime factorization131991
Divisors count22
Divisors1, 1311, 991
Number of properties1210
Additive primes17th89th
Chen primes26th115th
Cousin primes (2nd member)12th 
Emirps 36th
Isolated primes13th98th
Long primes12th 
Lucky primes 42nd
Multiplicative primes10th 
Palindromic primes7th 
Primes32nd167th
Sexy primes (1st member)20th74th
Solinas primes23rd43rd
Sophie germain primes12th 
Super primes 39th
Ulam primes8th18th
Roman numberalsCXXXICMXCI
Base 210000011211110111112
Base 311212311002013
Base 420034331334
Base 510115124315
Base 6335643316
Base 7245726147
Base 8203817378
Base 9155913219
Base 101311099110
Base 1110a1182111
Base 12ab126a712
Base 13a1135b313
Base 14951450b14
Base 158b1546115
Base 1683163df16
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