13 × 39821

Prime Factor Structure

Factorization String 13 × 39821

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 557,508

Proper Divisor Sum 39,835

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #517639 ← → #517711

1 13 39,821 517,673

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

517,673 1,553,020 776,510 388,255 1,164,766 582,383 1,747,150 873,575 2,620,726 1,310,363 3,931,090 1,965,545 5,896,636 2,948,318 1,474,159 4,422,478 2,211,239 6,633,718 3,316,859 9,950,578 4,975,289 14,925,868 7,462,934 3,731,467 11,194,402 5,597,201 16,791,604 8,395,802 4,197,901 12,593,704 6,296,852 3,148,426 1,574,213 4,722,640 2,361,320 1,180,660 590,330 295,165 885,496 442,748 221,374 110,687 332,062 166,031 498,094 249,047 747,142 373,571 1,120,714 560,357 1,681,072 840,536 420,268 210,134 105,067 315,202 157,601 472,804 236,402 118,201

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