13 × 71 × 421

Prime Factor Structure

Factorization String 13 × 71 × 421

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 425,376

Proper Divisor Sum 36,793

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #388573 ← → #388621

1 13 71 421 923 5,473 29,891 388,583

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

388,583 1,165,750 582,875 1,748,626 874,313 2,622,940 1,311,470 655,735 1,967,206 983,603 2,950,810 1,475,405 4,426,216 2,213,108 1,106,554 553,277 1,659,832 829,916 414,958 207,479 622,438 311,219 933,658 466,829 1,400,488 700,244 350,122 175,061 525,184 262,592 131,296 65,648 32,824 16,412 8,206 4,103 12,310 6,155 18,466 9,233 27,700 13,850 6,925 20,776 10,388 5,194 2,597 7,792 3,896 1,948 974 487 1,462 731 2,194 1,097 3,292 1,646 823 2,470

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