1. Numbers
  2. Compare 1997 vs 2647

Compare 1997 vs 2647

Property19972647
Typeprimeprime
Unique factors11
Total factors11
Prime factorization1997126471
Prime factorization19972647
Divisors count22
Divisors1, 19971, 2647
Number of properties109
Additive primes 202nd
Centered heptagonal primes 9th
Chen primes185th231st
Cousin primes (2nd member)64th 
Good primes64th75th
Isolated primes 236th
Left-truncatable primes62nd69th
Lucky primes 83rd
Primes302nd383rd
Prime triplets (1st member)50th 
Prime triplets (2nd member)49th 
Pythagorean primes147th 
Sexy primes (1st member)129th 
Super primes 76th
Twin primes (1st member)61st 
Roman numberalsMCMXCVIIMMDCXLVII
Base 21111100110121010010101112
Base 322012223101220013
Base 413303142211134
Base 5304425410425
Base 6131256201316
Base 755527105017
Base 83715851278
Base 92658935619
Base 10199710264710
Base 111556111a9711
Base 1211a512164712
Base 13ba813128813
Base 14a2914d7114
Base 158d215bb715
Base 167cd16a5716
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