2 × 5 × 397 × 409

Prime Factor Structure

Factorization String 2 × 5 × 397 × 409

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,937,240

Proper Divisor Sum 1,313,510

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #1623707 ← → #1623733

1 2 5 10 397 409 794 818 1,985 2,045 3,970 4,090 162,373 324,746 811,865 1,623,730

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

1,623,730 811,865 2,435,596 1,217,798 608,899 1,826,698 913,349 2,740,048 1,370,024 685,012 342,506 171,253 513,760 256,880 128,440 64,220 32,110 16,055 48,166 24,083 72,250 36,125 108,376 54,188 27,094 13,547 40,642 20,321 60,964 30,482 15,241 45,724 22,862 11,431 34,294 17,147 51,442 25,721 77,164 38,582 19,291 57,874 28,937 86,812 43,406 21,703 65,110 32,555 97,666 48,833 146,500 73,250 36,625 109,876 54,938 27,469 82,408 41,204 20,602 10,301

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