139 × 2213

Prime Factor Structure

Factorization String 139 × 2213

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 309,960

Proper Divisor Sum 2,353

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #307589 ← → #307609

1 139 2,213 307,607

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

307,607 922,822 461,411 1,384,234 692,117 2,076,352 1,038,176 519,088 259,544 129,772 64,886 32,443 97,330 48,665 145,996 72,998 36,499 109,498 54,749 164,248 82,124 41,062 20,531 61,594 30,797 92,392 46,196 23,098 11,549 34,648 17,324 8,662 4,331 12,994 6,497 19,492 9,746 4,873 14,620 7,310 3,655 10,966 5,483 16,450 8,225 24,676 12,338 6,169 18,508 9,254 4,627 13,882 6,941 20,824 10,412 5,206 2,603 7,810 3,905 11,716

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