3 × 5 × 53 × 2521

Prime Factor Structure

Factorization String 3 × 5 × 53 × 2521

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,268,512

Proper Divisor Sum 1,264,317

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #2004137 ← → #2004209

1 3 5 15 53 159 265 795 2,521 7,563 12,605 37,815 133,613 400,839 668,065 2,004,195

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

2,004,195 6,012,586 3,006,293 9,018,880 4,509,440 2,254,720 1,127,360 563,680 281,840 140,920 70,460 35,230 17,615 52,846 26,423 79,270 39,635 118,906 59,453 178,360 89,180 44,590 22,295 66,886 33,443 100,330 50,165 150,496 75,248 37,624 18,812 9,406 4,703 14,110 7,055 21,166 10,583 31,750 15,875 47,626 23,813 71,440 35,720 17,860 8,930 4,465 13,396 6,698 3,349 10,048 5,024 2,512 1,256 628 314 157 472 236 118 59

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