3 × 5 × 7 × 20563

Prime Factor Structure

Factorization String 3 × 5 × 7 × 20563

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,948,288

Proper Divisor Sum 1,789,173

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #2159093 ← → #2159147

1 3 5 7 15 21 35 105 20,563 61,689 102,815 143,941 308,445 431,823 719,705 2,159,115

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

2,159,115 6,477,346 3,238,673 9,716,020 4,858,010 2,429,005 7,287,016 3,643,508 1,821,754 910,877 2,732,632 1,366,316 683,158 341,579 1,024,738 512,369 1,537,108 768,554 384,277 1,152,832 576,416 288,208 144,104 72,052 36,026 18,013 54,040 27,020 13,510 6,755 20,266 10,133 30,400 15,200 7,600 3,800 1,900 950 475 1,426 713 2,140 1,070 535 1,606 803 2,410 1,205 3,616 1,808 904 452 226 113 340 170 85 256 128 64

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