1. Numbers
  2. Compare 21397 vs 21557

Compare 21397 vs 21557

Property2139721557
Typeprimeprime
Unique factors11
Total factors11
Prime factorization213971215571
Prime factorization2139721557
Divisors count22
Divisors1, 213971, 21557
Number of properties58
Chen primes 1186th
Cousin primes (1st member)365th 
Good primes 273rd
Isolated primes1677th 
Primes2402nd2418th
Prime triplets (1st member) 184th
Pythagorean primes1191st1199th
Sexy primes (1st member) 736th
Sexy primes (2nd member)729th 
Sexy prime triplets (1st member) 201st
Twin primes (1st member) 366th
Roman numberals  
Base 210100111001010121010100001101012
Base 31002100111310021201023
Base 4110321114111003114
Base 51141042511422125
Base 624302162434456
Base 711624571165647
Base 8516258520658
Base 9323149325129
Base 1021397102155710
Base 1115092111521811
Base 1210471121058512
Base 13997c139a7313
Base 147b25147bdb14
Base 1565171565c215
Base 16539516543516
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