3 × 7 × 79 × 401

Prime Factor Structure

Factorization String 3 × 7 × 79 × 401

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,029,120

Proper Divisor Sum 363,861

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #665251 ← → #665267

1 3 7 21 79 237 401 553 1,203 1,659 2,807 8,421 31,679 95,037 221,753 665,259

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

665,259 1,995,778 997,889 2,993,668 1,496,834 748,417 2,245,252 1,122,626 561,313 1,683,940 841,970 420,985 1,262,956 631,478 315,739 947,218 473,609 1,420,828 710,414 355,207 1,065,622 532,811 1,598,434 799,217 2,397,652 1,198,826 599,413 1,798,240 899,120 449,560 224,780 112,390 56,195 168,586 84,293 252,880 126,440 63,220 31,610 15,805 47,416 23,708 11,854 5,927 17,782 8,891 26,674 13,337 40,012 20,006 10,003 30,010 15,005 45,016 22,508 11,254 5,627 16,882 8,441 25,324

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