2 × 7 × 13 × 19 × 199

Prime Factor Structure

Factorization String 2 × 7 × 13 × 19 × 199

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 1,344,000

Proper Divisor Sum 655,858

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #688139 ← → #688147

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

688,142 344,071 1,032,214 516,107 1,548,322 774,161 2,322,484 1,161,242 580,621 1,741,864 870,932 435,466 217,733 653,200 326,600 163,300 81,650 40,825 122,476 61,238 30,619 91,858 45,929 137,788 68,894 34,447 103,342 51,671 155,014 77,507 232,522 116,261 348,784 174,392 87,196 43,598 21,799 65,398 32,699 98,098 49,049 147,148 73,574 36,787 110,362 55,181 165,544 82,772 41,386 20,693 62,080 31,040 15,520 7,760 3,880 1,940 970 485 1,456 728

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