3 × 7 × 17 × 991

Prime Factor Structure

Factorization String 3 × 7 × 17 × 991

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 571,392

Proper Divisor Sum 217,605

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #353783 ← → #353797

1 3 7 17 21 51 119 357 991 2,973 6,937 16,847 20,811 50,541 117,929 353,787

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

353,787 1,061,362 530,681 1,592,044 796,022 398,011 1,194,034 597,017 1,791,052 895,526 447,763 1,343,290 671,645 2,014,936 1,007,468 503,734 251,867 755,602 377,801 1,133,404 566,702 283,351 850,054 425,027 1,275,082 637,541 1,912,624 956,312 478,156 239,078 119,539 358,618 179,309 537,928 268,964 134,482 67,241 201,724 100,862 50,431 151,294 75,647 226,942 113,471 340,414 170,207 510,622 255,311 765,934 382,967 1,148,902 574,451 1,723,354 861,677 2,585,032 1,292,516 646,258 323,129 969,388 484,694

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