1. Numbers
  2. Compare 21397 vs 21406

Compare 21397 vs 21406

Property2139721406
Typeprimecomposite number
Unique factors14
Total factors14
Prime factorization21397121 × 71 × 111 × 1391
Prime factorization213972 × 7 × 11 × 139
Divisors count216
Divisors1, 213971, 2, 7, 11, 14, 22, 77, 139, 154, 278, 973, 1529, 1946, 3058, 10703, 21406
Number of properties50
Cousin primes (1st member)365th 
Isolated primes1677th 
Primes2402nd 
Pythagorean primes1191st 
Sexy primes (2nd member)729th 
Roman numberals  
Base 210100111001010121010011100111102
Base 31002100111310021002113
Base 4110321114110321324
Base 51141042511411115
Base 624302162430346
Base 711624571162607
Base 8516258516368
Base 9323149323249
Base 1021397102140610
Base 111509211150a011
Base 1210471121047a12
Base 13997c13998813
Base 147b25147b3014
Base 15651715652115
Base 16539516539e16
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