13 × 1289

Prime Factor Structure

Factorization String 13 × 1289

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 18,060

Proper Divisor Sum 1,303

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #16747 ← → #16759

1 13 1,289 16,757

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

16,757 50,272 25,136 12,568 6,284 3,142 1,571 4,714 2,357 7,072 3,536 1,768 884 442 221 664 332 166 83 250 125 376 188 94 47 142 71 214 107 322 161 484 242 121 364 182 91 274 137 412 206 103 310 155 466 233 700 350 175 526 263 790 395 1,186 593 1,780 890 445 1,336 668

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