1. Numbers
  2. Compare 21997 vs 22005

Compare 21997 vs 22005

Property2199722005
Typeprimecomposite number
Unique factors13
Total factors15
Prime factorization21997133 × 51 × 1631
Prime factorization219973 × 3 × 3 × 5 × 163
Divisors count216
Divisors1, 219971, 3, 5, 9, 15, 27, 45, 135, 163, 489, 815, 1467, 2445, 4401, 7335, 22005
Number of properties80
Chen primes1209th 
Isolated primes1721st 
Left-truncatable primes173rd 
Primes2464th 
Pythagorean primes1223rd 
Sexy primes (1st member)743rd 
Sexy primes (2nd member)742nd 
Sexy prime triplets (2nd member)202nd 
Roman numberals  
Base 210101011110110121010101111101012
Base 31010011201310100120003
Base 4111132314111133114
Base 51200442512010105
Base 624550162455136
Base 712106371211047
Base 8527558527658
Base 9331519331609
Base 1021997102200510
Base 1115588111559511
Base 1210891121089912
Base 13a02113a02913
Base 14803314803b14
Base 1567b71567c015
Base 1655ed1655f516
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