2 × 128987

Prime Factor Structure

Factorization String 2 × 128987

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 386,964

Proper Divisor Sum 128,990

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #257953 ← → #257981

1 2 128,987 257,974

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

257,974 128,987 386,962 193,481 580,444 290,222 145,111 435,334 217,667 653,002 326,501 979,504 489,752 244,876 122,438 61,219 183,658 91,829 275,488 137,744 68,872 34,436 17,218 8,609 25,828 12,914 6,457 19,372 9,686 4,843 14,530 7,265 21,796 10,898 5,449 16,348 8,174 4,087 12,262 6,131 18,394 9,197 27,592 13,796 6,898 3,449 10,348 5,174 2,587 7,762 3,881 11,644 5,822 2,911 8,734 4,367 13,102 6,551 19,654 9,827

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