521 × 757

Prime Factor Structure

Factorization String 521 × 757

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 395,676

Proper Divisor Sum 1,279

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #394393 ← → #394409

1 521 757 394,397

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

394,397 1,183,192 591,596 295,798 147,899 443,698 221,849 665,548 332,774 166,387 499,162 249,581 748,744 374,372 187,186 93,593 280,780 140,390 70,195 210,586 105,293 315,880 157,940 78,970 39,485 118,456 59,228 29,614 14,807 44,422 22,211 66,634 33,317 99,952 49,976 24,988 12,494 6,247 18,742 9,371 28,114 14,057 42,172 21,086 10,543 31,630 15,815 47,446 23,723 71,170 35,585 106,756 53,378 26,689 80,068 40,034 20,017 60,052 30,026 15,013

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