3 × 5 × 11² × 353

Prime Factor Structure

Factorization String 3 × 5 × 11^2 × 353

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,129,968

Proper Divisor Sum 489,273

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #640691 ← → #640727

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

640,695 1,922,086 961,043 2,883,130 1,441,565 4,324,696 2,162,348 1,081,174 540,587 1,621,762 810,881 2,432,644 1,216,322 608,161 1,824,484 912,242 456,121 1,368,364 684,182 342,091 1,026,274 513,137 1,539,412 769,706 384,853 1,154,560 577,280 288,640 144,320 72,160 36,080 18,040 9,020 4,510 2,255 6,766 3,383 10,150 5,075 15,226 7,613 22,840 11,420 5,710 2,855 8,566 4,283 12,850 6,425 19,276 9,638 4,819 14,458 7,229 21,688 10,844 5,422 2,711 8,134 4,067

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