1. Numbers
  2. Compare 640047 vs 640049

Compare 640047 vs 640049

Property640047640049
Typesemiprimeprime
Unique factors21
Total factors21
Prime factorization31 × 21334916400491
Prime factorization3 × 213349640049
Divisors count42
Divisors1, 3, 213349, 6400471, 640049
Number of properties15
Additive primes 20354th
Isolated primes 40818th
Primes 52081st
Semiprimes137153rd 
Sexy primes (2nd member) 11285th
Super primes 5327th
Roman numberals  
Base 2100111000100001011112100111000100001100012
Base 31012111222110310121112221123
Base 42130100233421301003014
Base 513044014251304401445
Base 6214151036214151056
Base 75304012753040147
Base 82342057823420618
Base 91174873911748759
Base 106400471064004910
Base 113a7971113a797311
Base 1226a4931226a49512
Base 131954351319543713
Base 141293791412937b14
Base 15c999c15c999e15
Base 169c42f169c43116
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