1. Numbers
  2. Compare 121997 vs 139397

Compare 121997 vs 139397

Property121997139397
Typeprimeprime
Unique factors11
Total factors11
Prime factorization12199711393971
Prime factorization121997139397
Divisors count22
Divisors1, 1219971, 139397
Number of properties88
Additive primes4722nd 
Chen primes4978th5583rd
Cousin primes (2nd member)1430th1602nd
Emirps 2687th
Happy primes 2023rd
Isolated primes8594th9751st
Left-truncatable primes348th354th
Primes11475th12958th
Pythagorean primes5707th6454th
Restricted left-truncatable primes32nd 
Roman numberals  
Base 21110111001000110121000100000100001012
Base 3200121001023210020122123
Base 413130203142020020114
Base 5124004425134300425
Base 62340445625532056
Base 71015451711202567
Base 835621584202058
Base 920531292321859
Base 101219971013939710
Base 1183727119580511
Base 125a725126880512
Base 13436b5134b5ab13
Base 14326611438b2d14
Base 1526232152b48215
Base 161dc8d162208516
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