3² × 13 × 53 × 103

Prime Factor Structure

Factorization String 3^2 × 13 × 53 × 103

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,022,112

Proper Divisor Sum 383,409

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #638699 ← → #638717

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

638,703 1,916,110 958,055 2,874,166 1,437,083 4,311,250 2,155,625 6,466,876 3,233,438 1,616,719 4,850,158 2,425,079 7,275,238 3,637,619 10,912,858 5,456,429 16,369,288 8,184,644 4,092,322 2,046,161 6,138,484 3,069,242 1,534,621 4,603,864 2,301,932 1,150,966 575,483 1,726,450 863,225 2,589,676 1,294,838 647,419 1,942,258 971,129 2,913,388 1,456,694 728,347 2,185,042 1,092,521 3,277,564 1,638,782 819,391 2,458,174 1,229,087 3,687,262 1,843,631 5,530,894 2,765,447 8,296,342 4,148,171 12,444,514 6,222,257 18,666,772 9,333,386 4,666,693 14,000,080 7,000,040 3,500,020 1,750,010 875,005

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