3 × 5 × 7³ × 4159

Prime Factor Structure

Factorization String 3 × 5 × 7^3 × 4159

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 39,936,000

Proper Divisor Sum 18,537,945

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #21398033 ← → #21398063

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

21,398,055 64,194,166 32,097,083 96,291,250 48,145,625 144,436,876 72,218,438 36,109,219 108,327,658 54,163,829 162,491,488 81,245,744 40,622,872 20,311,436 10,155,718 5,077,859 15,233,578 7,616,789 22,850,368 11,425,184 5,712,592 2,856,296 1,428,148 714,074 357,037 1,071,112 535,556 267,778 133,889 401,668 200,834 100,417 301,252 150,626 75,313 225,940 112,970 56,485 169,456 84,728 42,364 21,182 10,591 31,774 15,887 47,662 23,831 71,494 35,747 107,242 53,621 160,864 80,432 40,216 20,108 10,054 5,027 15,082 7,541 22,624

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