3 × 5 × 53 × 809

Prime Factor Structure

Factorization String 3 × 5 × 53 × 809

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,049,760

Proper Divisor Sum 406,605

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #643129 ← → #643183

1 3 5 15 53 159 265 795 809 2,427 4,045 12,135 42,877 128,631 214,385 643,155

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

643,155 1,929,466 964,733 2,894,200 1,447,100 723,550 361,775 1,085,326 542,663 1,627,990 813,995 2,441,986 1,220,993 3,662,980 1,831,490 915,745 2,747,236 1,373,618 686,809 2,060,428 1,030,214 515,107 1,545,322 772,661 2,317,984 1,158,992 579,496 289,748 144,874 72,437 217,312 108,656 54,328 27,164 13,582 6,791 20,374 10,187 30,562 15,281 45,844 22,922 11,461 34,384 17,192 8,596 4,298 2,149 6,448 3,224 1,612 806 403 1,210 605 1,816 908 454 227 682

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