2 × 5 × 13 × 4003

Prime Factor Structure

Factorization String 2 × 5 × 13 × 4003

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,009,008

Proper Divisor Sum 488,618

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #520381 ← → #520393

1 2 5 10 13 26 65 130 4,003 8,006 20,015 40,030 52,039 104,078 260,195 520,390

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

520,390 260,195 780,586 390,293 1,170,880 585,440 292,720 146,360 73,180 36,590 18,295 54,886 27,443 82,330 41,165 123,496 61,748 30,874 15,437 46,312 23,156 11,578 5,789 17,368 8,684 4,342 2,171 6,514 3,257 9,772 4,886 2,443 7,330 3,665 10,996 5,498 2,749 8,248 4,124 2,062 1,031 3,094 1,547 4,642 2,321 6,964 3,482 1,741 5,224 2,612 1,306 653 1,960 980 490 245 736 368 184 92

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