13 × 17 × 2521

Prime Factor Structure

Factorization String 13 × 17 × 2521

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 635,544

Proper Divisor Sum 78,403

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #557093 ← → #557153

1 13 17 221 2,521 32,773 42,857 557,141

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

557,141 1,671,424 835,712 417,856 208,928 104,464 52,232 26,116 13,058 6,529 19,588 9,794 4,897 14,692 7,346 3,673 11,020 5,510 2,755 8,266 4,133 12,400 6,200 3,100 1,550 775 2,326 1,163 3,490 1,745 5,236 2,618 1,309 3,928 1,964 982 491 1,474 737 2,212 1,106 553 1,660 830 415 1,246 623 1,870 935 2,806 1,403 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554

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