1. Numbers
  2. Compare 1285 vs 1297

Compare 1285 vs 1297

Property12851297
Typesemiprimeprime
Unique factors21
Total factors21
Prime factorization51 × 257112971
Prime factorization5 × 2571297
Divisors count42
Divisors1, 5, 257, 12851, 1297
Number of properties114
Additive primes 114th
Chen primes 138th
Cousin primes (1st member) 47th
Isolated primes 124th
Long primes 81st
Pierpont primes 20th
Primes 211th
Prime triplets (1st member) 34th
Pythagorean primes 104th
Quartan primes 8th
Semiprimes378th 
Sexy primes (1st member) 92nd
Sexy primes (2nd member) 91st
Sexy prime triplets (2nd member) 35th
Super primes 47th
Roman numberalsMCCLXXXVMCCXCVII
Base 2101000001012101000100012
Base 31202121312100013
Base 411001141101014
Base 5201205201425
Base 655416100016
Base 73514735327
Base 82405824218
Base 91677917019
Base 10128510129710
Base 11a6911a7a11
Base 128b11290112
Base 1377b1378a13
Base 1467b1468914
Base 155aa155b715
Base 165051651116
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