1. Numbers
  2. Compare 201821 vs 201911

Compare 201821 vs 201911

Property201821201911
Typeprimeprime
Unique factors11
Total factors11
Prime factorization20182112019111
Prime factorization201821201911
Divisors count22
Divisors1, 2018211, 201911
Number of properties104
Chen primes7581st7584th
Cousin primes (2nd member) 2153rd
Isolated primes 13794th
Long primes6796th 
Primes18129th18139th
Prime quadruplets (1st member)54th 
Prime quintuplet 2s (1st member)15th 
Prime triplets (1st member)844th 
Pythagorean primes9050th 
Sexy primes (1st member)4326th 
Sexy prime triplets (1st member)870th 
Twin primes (1st member)2172nd 
Roman numberals  
Base 211000101000101110121100010100101101112
Base 310102021121231010202220123
Base 430110113143011023134
Base 5224242415224301215
Base 64154205641544356
Base 71500254715004437
Base 861213586122678
Base 933675593368659
Base 102018211020191110
Base 111286a41112877611
Base 12989651298a1b12
Base 1370b291370b9813
Base 145379b145382314
Base 153ebeb153ec5b15
Base 163145d16314b716
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