2² × 3 × 11 × 23 × 211

Prime Factor Structure

Factorization String 2^2 × 3 × 11 × 23 × 211

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,709,568

Proper Divisor Sum 1,068,972

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #640589 ← → #640613

1 2 3 4 6 11 12 22 23 33 44 46 66 69 92 132 138 211 253 276 422 506 633 759 844 1,012 1,266 1,518 2,321 2,532 3,036 4,642 4,853 6,963 9,284 9,706 13,926 14,559 19,412 27,852 29,118 53,383 58,236 106,766 160,149 213,532 320,298 640,596

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

640,596 320,298 160,149 480,448 240,224 120,112 60,056 30,028 15,014 7,507 22,522 11,261 33,784 16,892 8,446 4,223 12,670 6,335 19,006 9,503 28,510 14,255 42,766 21,383 64,150 32,075 96,226 48,113 144,340 72,170 36,085 108,256 54,128 27,064 13,532 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.