1. Numbers
  2. Compare 1427 vs 1721

Compare 1427 vs 1721

Property14271721
Typeprimeprime
Unique factors11
Total factors11
Prime factorization1427117211
Prime factorization14271721
Divisors count22
Divisors1, 14271, 1721
Number of properties106
Additive primes 143rd
Chen primes147th169th
Cousin primes (2nd member)49th 
Good primes54th 
Happy primes44th 
Primes225th268th
Prime triplets (1st member)37th 
Prime triplets (2nd member)36th 
Pythagorean primes 130th
Sexy primes (1st member)98th 
Sexy prime triplets (1st member)37th 
Twin primes (1st member)47th55th
Ulam primes 25th
Roman numberalsMCDXXVIIMDCCXXI
Base 2101100100112110101110012
Base 31221212321002023
Base 411210341223214
Base 5212025233415
Base 6103356115456
Base 74106750067
Base 82623832718
Base 91855923229
Base 10142710172110
Base 11108811132511
Base 129ab12bb512
Base 1385a13a2513
Base 1473d148ad14
Base 156521579b15
Base 16593166b916
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