139 × 2857

Prime Factor Structure

Factorization String 139 × 2857

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 400,120

Proper Divisor Sum 2,997

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #397099 ← → #397127

1 139 2,857 397,123

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

397,123 1,191,370 595,685 1,787,056 893,528 446,764 223,382 111,691 335,074 167,537 502,612 251,306 125,653 376,960 188,480 94,240 47,120 23,560 11,780 5,890 2,945 8,836 4,418 2,209 6,628 3,314 1,657 4,972 2,486 1,243 3,730 1,865 5,596 2,798 1,399 4,198 2,099 6,298 3,149 9,448 4,724 2,362 1,181 3,544 1,772 886 443 1,330 665 1,996 998 499 1,498 749 2,248 1,124 562 281 844 422

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.