1. Numbers
  2. Compare 21221 vs 21228

Compare 21221 vs 21228

Property2122121228
Typeprimecomposite number
Unique factors14
Total factors15
Prime factorization21221122 × 31 × 291 × 611
Prime factorization212212 × 2 × 3 × 29 × 61
Divisors count224
Divisors1, 212211, 2, 3, 4, 6, 12, 29, 58, 61, 87, 116, 122, 174, 183, 244, 348, 366, 732, 1769, 3538, 5307, 7076, 10614, 21228
Number of properties60
Chen primes1172nd 
Isolated primes1665th 
Primes2386th 
Pythagorean primes1184th 
Sexy primes (1st member)723rd 
Sophie germain primes346th 
Roman numberals  
Base 210100101110010121010010111011002
Base 31002002222310020100203
Base 4110232114110232304
Base 51134341511344035
Base 624212562421406
Base 711560471156147
Base 8513458513548
Base 9320889321069
Base 1021221102122810
Base 1114a421114a4911
Base 1210345121035012
Base 13987513987c13
Base 147a3b147a4414
Base 15644b15645315
Base 1652e51652ec16
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