13 × 19 × 257

Prime Factor Structure

Factorization String 13 × 19 × 257

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 72,240

Proper Divisor Sum 8,761

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #63473 ← → #63487

1 13 19 247 257 3,341 4,883 63,479

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

63,479 190,438 95,219 285,658 142,829 428,488 214,244 107,122 53,561 160,684 80,342 40,171 120,514 60,257 180,772 90,386 45,193 135,580 67,790 33,895 101,686 50,843 152,530 76,265 228,796 114,398 57,199 171,598 85,799 257,398 128,699 386,098 193,049 579,148 289,574 144,787 434,362 217,181 651,544 325,772 162,886 81,443 244,330 122,165 366,496 183,248 91,624 45,812 22,906 11,453 34,360 17,180 8,590 4,295 12,886 6,443 19,330 9,665 28,996 14,498

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