139 × 1987

Prime Factor Structure

Factorization String 139 × 1987

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 278,320

Proper Divisor Sum 2,127

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #276191 ← → #276209

1 139 1,987 276,193

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

276,193 828,580 414,290 207,145 621,436 310,718 155,359 466,078 233,039 699,118 349,559 1,048,678 524,339 1,573,018 786,509 2,359,528 1,179,764 589,882 294,941 884,824 442,412 221,206 110,603 331,810 165,905 497,716 248,858 124,429 373,288 186,644 93,322 46,661 139,984 69,992 34,996 17,498 8,749 26,248 13,124 6,562 3,281 9,844 4,922 2,461 7,384 3,692 1,846 923 2,770 1,385 4,156 2,078 1,039 3,118 1,559 4,678 2,339 7,018 3,509 10,528

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