1. Numbers
  2. Compare 21487 vs 21490

Compare 21487 vs 21490

Property2148721490
Typeprimecomposite number
Unique factors14
Total factors14
Prime factorization21487121 × 51 × 71 × 3071
Prime factorization214872 × 5 × 7 × 307
Divisors count216
Divisors1, 214871, 2, 5, 7, 10, 14, 35, 70, 307, 614, 1535, 2149, 3070, 4298, 10745, 21490
Number of properties120
Cousin primes (1st member)366th 
Good primes271st 
Harmonic primes884th 
Isolated primes1684th 
Long primes913th 
Primes2409th 
Prime triplets (1st member)182nd 
Sexy primes (1st member)732nd 
Sexy primes (2nd member)731st 
Sexy prime quadrupletss (2nd member)37th 
Sexy prime triplets (1st member)199th 
Sexy prime triplets (2nd member)198th 
Roman numberals  
Base 210100111110111121010011111100102
Base 31002110211310021102213
Base 4110332334110333024
Base 51141422511414305
Base 624325162432546
Base 711643471164407
Base 8517578517628
Base 9324249324279
Base 1021487102149010
Base 1115164111516711
Base 1210527121052a12
Base 139a1b139a2113
Base 147b8b147b9014
Base 15657715657a15
Base 1653ef1653f216
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