139 × 151

Prime Factor Structure

Factorization String 139 × 151

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 21,280

Proper Divisor Sum 291

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #20983 ← → #21001

1 139 151 20,989

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

20,989 62,968 31,484 15,742 7,871 23,614 11,807 35,422 17,711 53,134 26,567 79,702 39,851 119,554 59,777 179,332 89,666 44,833 134,500 67,250 33,625 100,876 50,438 25,219 75,658 37,829 113,488 56,744 28,372 14,186 7,093 21,280 10,640 5,320 2,660 1,330 665 1,996 998 499 1,498 749 2,248 1,124 562 281 844 422 211 634 317 952 476 238 119 358 179 538 269 808

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