1. Numbers
  2. Compare 1428 vs 1439

Compare 1428 vs 1439

Property14281439
Typecomposite numberprime
Unique factors41
Total factors51
Prime factorization22 × 31 × 71 × 17114391
Prime factorization2 × 2 × 3 × 7 × 171439
Divisors count242
Divisors1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 119, 204, 238, 357, 476, 714, 14281, 1439
Number of properties09
Additive primes 124th
Chen primes 148th
Emirps 68th
Isolated primes 135th
Primes 228th
Safe primes 32nd
Sexy primes (2nd member) 99th
Sexy prime triplets (3rd member) 37th
Sophie germain primes 47th
Roman numberalsMCDXXVIIIMCDXXXIX
Base 2101100101002101100111112
Base 31221220312220223
Base 411211041121334
Base 5212035212245
Base 6103406103556
Base 74110741247
Base 82624826378
Base 91856918689
Base 10142810143910
Base 11108911109911
Base 129b0129bb12
Base 1385b1386913
Base 147401474b14
Base 156531565e15
Base 165941659f16
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