2 × 5 × 7 × 13 × 19 × 37

Prime Factor Structure

Factorization String 2 × 5 × 7 × 13 × 19 × 37

Distinct Prime Factors 6

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 64

Divisor Sum (σ) 1,532,160

Proper Divisor Sum 892,430

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #639719 ← → #639731

1 2 5 7 10 13 14 19 26 35 37 38 65 70 74 91 95 130 133 182 185 190 247 259 266 370 455 481 494 518 665 703 910 962 1,235 1,295 1,330 1,406 1,729 2,405 2,470 2,590 3,367 3,458 3,515 4,810 4,921 6,734 7,030 8,645 9,139 9,842 16,835 17,290 18,278 24,605 33,670 45,695 49,210 63,973

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

639,730 319,865 959,596 479,798 239,899 719,698 359,849 1,079,548 539,774 269,887 809,662 404,831 1,214,494 607,247 1,821,742 910,871 2,732,614 1,366,307 4,098,922 2,049,461 6,148,384 3,074,192 1,537,096 768,548 384,274 192,137 576,412 288,206 144,103 432,310 216,155 648,466 324,233 972,700 486,350 243,175 729,526 364,763 1,094,290 547,145 1,641,436 820,718 410,359 1,231,078 615,539 1,846,618 923,309 2,769,928 1,384,964 692,482 346,241 1,038,724 519,362 259,681 779,044 389,522 194,761 584,284 292,142 146,071

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