1. Numbers
  2. Compare 21397 vs 21400

Compare 21397 vs 21400

Property2139721400
Typeprimecomposite number
Unique factors13
Total factors16
Prime factorization21397123 × 52 × 1071
Prime factorization213972 × 2 × 2 × 5 × 5 × 107
Divisors count224
Divisors1, 213971, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 107, 200, 214, 428, 535, 856, 1070, 2140, 2675, 4280, 5350, 10700, 21400
Number of properties50
Cousin primes (1st member)365th 
Isolated primes1677th 
Primes2402nd 
Pythagorean primes1191st 
Sexy primes (2nd member)729th 
Roman numberals  
Base 210100111001010121010011100110002
Base 31002100111310021001213
Base 4110321114110321204
Base 51141042511411005
Base 624302162430246
Base 711624571162517
Base 8516258516308
Base 9323149323179
Base 1021397102140010
Base 1115092111509511
Base 1210471121047412
Base 13997c13998213
Base 147b25147b2814
Base 15651715651a15
Base 16539516539816
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