3 × 19² × 257

Prime Factor Structure

Factorization String 3 × 19^2 × 257

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 393,192

Proper Divisor Sum 114,861

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #278329 ← → #278347

1 3 19 57 257 361 771 1,083 4,883 14,649 92,777 278,331

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

278,331 834,994 417,497 1,252,492 626,246 313,123 939,370 469,685 1,409,056 704,528 352,264 176,132 88,066 44,033 132,100 66,050 33,025 99,076 49,538 24,769 74,308 37,154 18,577 55,732 27,866 13,933 41,800 20,900 10,450 5,225 15,676 7,838 3,919 11,758 5,879 17,638 8,819 26,458 13,229 39,688 19,844 9,922 4,961 14,884 7,442 3,721 11,164 5,582 2,791 8,374 4,187 12,562 6,281 18,844 9,422 4,711 14,134 7,067 21,202 10,601

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