19 × 59 × 571

Prime Factor Structure

Factorization String 19 × 59 × 571

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 686,400

Proper Divisor Sum 46,309

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #640069 ← → #640099

1 19 59 571 1,121 10,849 33,689 640,091

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

640,091 1,920,274 960,137 2,880,412 1,440,206 720,103 2,160,310 1,080,155 3,240,466 1,620,233 4,860,700 2,430,350 1,215,175 3,645,526 1,822,763 5,468,290 2,734,145 8,202,436 4,101,218 2,050,609 6,151,828 3,075,914 1,537,957 4,613,872 2,306,936 1,153,468 576,734 288,367 865,102 432,551 1,297,654 648,827 1,946,482 973,241 2,919,724 1,459,862 729,931 2,189,794 1,094,897 3,284,692 1,642,346 821,173 2,463,520 1,231,760 615,880 307,940 153,970 76,985 230,956 115,478 57,739 173,218 86,609 259,828 129,914 64,957 194,872 97,436 48,718 24,359

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