1. Numbers
  2. Compare 21997 vs 22009

Compare 21997 vs 22009

Property2199722009
Typeprimesemiprime
Unique factors12
Total factors12
Prime factorization219971131 × 16931
Prime factorization2199713 × 1693
Divisors count24
Divisors1, 219971, 13, 1693, 22009
Number of properties81
Chen primes1209th 
Isolated primes1721st 
Left-truncatable primes173rd 
Primes2464th 
Pythagorean primes1223rd 
Semiprimes 5557th
Sexy primes (1st member)743rd 
Sexy primes (2nd member)742nd 
Sexy prime triplets (2nd member)202nd 
Roman numberals  
Base 210101011110110121010101111110012
Base 31010011201310100120113
Base 4111132314111133214
Base 51200442512010145
Base 624550162455216
Base 712106371211117
Base 8527558527718
Base 9331519331649
Base 1021997102200910
Base 1115588111559911
Base 121089112108a112
Base 13a02113a03013
Base 14803314804114
Base 1567b71567c415
Base 1655ed1655f916
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