3 × 7 × 13² × 79

Prime Factor Structure

Factorization String 3 × 7 × 13^2 × 79

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 468,480

Proper Divisor Sum 188,109

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #280351 ← → #280373

1 3 7 13 21 39 79 91 169 237 273 507 553 1,027 1,183 1,659 3,081 3,549 7,189 13,351 21,567 40,053 93,457 280,371

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

280,371 841,114 420,557 1,261,672 630,836 315,418 157,709 473,128 236,564 118,282 59,141 177,424 88,712 44,356 22,178 11,089 33,268 16,634 8,317 24,952 12,476 6,238 3,119 9,358 4,679 14,038 7,019 21,058 10,529 31,588 15,794 7,897 23,692 11,846 5,923 17,770 8,885 26,656 13,328 6,664 3,332 1,666 833 2,500 1,250 625 1,876 938 469 1,408 704 352 176 88 44 22 11 34 17 52

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