1. Numbers
  2. Compare 28661 vs 28665

Compare 28661 vs 28665

Property2866128665
Typeprimecomposite number
Unique factors14
Total factors16
Prime factorization28661132 × 51 × 72 × 131
Prime factorization286613 × 3 × 5 × 7 × 7 × 13
Divisors count236
Divisors1, 286611, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 49, 63, 65, 91, 105, 117, 147, 195, 245, 273, 315, 441, 455, 585, 637, 735, 819, 1365, 1911, 2205, 3185, 4095, 5733, 9555, 28665
Number of properties80
Additive primes1426th 
Chen primes1512th 
Cousin primes (2nd member)455th 
Long primes1187th 
Primes3122nd 
Prime triplets (2nd member)221st 
Pythagorean primes1553rd 
Twin primes (1st member)457th 
Roman numberals  
Base 211011111111010121101111111110012
Base 31110022112311100222003
Base 4123333114123333214
Base 51404121514041305
Base 634040563404136
Base 714636371464007
Base 8677658677718
Base 9432759432809
Base 1028661102866510
Base 111a596111a59a11
Base 1214705121470912
Base 1310079131008013
Base 14a63314a63714
Base 15875b15876015
Base 166ff5166ff916
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