19² × 1777

Prime Factor Structure

Factorization String 19^2 × 1777

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 677,418

Proper Divisor Sum 35,921

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #641491 ← → #641513

1 19 361 1,777 33,763 641,497

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

641,497 1,924,492 962,246 481,123 1,443,370 721,685 2,165,056 1,082,528 541,264 270,632 135,316 67,658 33,829 101,488 50,744 25,372 12,686 6,343 19,030 9,515 28,546 14,273 42,820 21,410 10,705 32,116 16,058 8,029 24,088 12,044 6,022 3,011 9,034 4,517 13,552 6,776 3,388 1,694 847 2,542 1,271 3,814 1,907 5,722 2,861 8,584 4,292 2,146 1,073 3,220 1,610 805 2,416 1,208 604 302 151 454 227 682

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