3 × 7 × 13 × 1217

Prime Factor Structure

Factorization String 3 × 7 × 13 × 1217

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 545,664

Proper Divisor Sum 213,423

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #332221 ← → #332251

1 3 7 13 21 39 91 273 1,217 3,651 8,519 15,821 25,557 47,463 110,747 332,241

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

332,241 996,724 498,362 249,181 747,544 373,772 186,886 93,443 280,330 140,165 420,496 210,248 105,124 52,562 26,281 78,844 39,422 19,711 59,134 29,567 88,702 44,351 133,054 66,527 199,582 99,791 299,374 149,687 449,062 224,531 673,594 336,797 1,010,392 505,196 252,598 126,299 378,898 189,449 568,348 284,174 142,087 426,262 213,131 639,394 319,697 959,092 479,546 239,773 719,320 359,660 179,830 89,915 269,746 134,873 404,620 202,310 101,155 303,466 151,733 455,200

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