1. Numbers
  2. Compare 201812 vs 201821

Compare 201812 vs 201821

Property201812201821
Typecomposite numberprime
Unique factors31
Total factors41
Prime factorization22 × 131 × 388112018211
Prime factorization2 × 2 × 13 × 3881201821
Divisors count122
Divisors1, 2, 4, 13, 26, 52, 3881, 7762, 15524, 50453, 100906, 2018121, 201821
Number of properties010
Chen primes 7581st
Long primes 6796th
Primes 18129th
Prime quadruplets (1st member) 54th
Prime quintuplet 2s (1st member) 15th
Prime triplets (1st member) 844th
Pythagorean primes 9050th
Sexy primes (1st member) 4326th
Sexy prime triplets (1st member) 870th
Twin primes (1st member) 2172nd
Roman numberals  
Base 211000101000101010021100010100010111012
Base 310102021111231010202112123
Base 430110111043011011314
Base 5224242225224242415
Base 64154152641542056
Base 71500242715002547
Base 861212486121358
Base 933674593367559
Base 102018121020182110
Base 11128696111286a411
Base 1298958129896512
Base 1370b201370b2913
Base 1453792145379b14
Base 153ebe2153ebeb15
Base 1631454163145d16
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