1. Numbers
  2. Compare 201821 vs 201830

Compare 201821 vs 201830

Property201821201830
Typeprimecomposite number
Unique factors13
Total factors13
Prime factorization201821121 × 51 × 201831
Prime factorization2018212 × 5 × 20183
Divisors count28
Divisors1, 2018211, 2, 5, 10, 20183, 40366, 100915, 201830
Number of properties100
Chen primes7581st 
Long primes6796th 
Primes18129th 
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 211000101000101110121100010100011001102
Base 310102021121231010202120123
Base 430110113143011012124
Base 5224242415224243105
Base 64154205641542226
Base 71500254715002667
Base 861213586121468
Base 933675593367659
Base 102018211020183010
Base 111286a41112870211
Base 1298965129897212
Base 1370b291370b3513
Base 145379b14537a614
Base 153ebeb153ec0515
Base 163145d163146616
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