3² × 211²

Prime Factor Structure

Factorization String 3^2 × 211^2

Distinct Prime Factors 2

Square Status Yes (√400689 = 633)

Abundance Measure Deficient

Analytical Properties

Total Divisors 9

Divisor Sum (σ) 581,529

Proper Divisor Sum 180,840

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #400681 ← → #400703

1 3 9 211 633 1,899 44,521 133,563 400,689

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

400,689 1,202,068 601,034 300,517 901,552 450,776 225,388 112,694 56,347 169,042 84,521 253,564 126,782 63,391 190,174 95,087 285,262 142,631 427,894 213,947 641,842 320,921 962,764 481,382 240,691 722,074 361,037 1,083,112 541,556 270,778 135,389 406,168 203,084 101,542 50,771 152,314 76,157 228,472 114,236 57,118 28,559 85,678 42,839 128,518 64,259 192,778 96,389 289,168 144,584 72,292 36,146 18,073 54,220 27,110 13,555 40,666 20,333 61,000 30,500 15,250

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