2² × 3² × 107 × 167

Prime Factor Structure

Factorization String 2^2 × 3^2 × 107 × 167

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 1,651,104

Proper Divisor Sum 1,007,820

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #643273 ← → #643301

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

643,284 321,642 160,821 482,464 241,232 120,616 60,308 30,154 15,077 45,232 22,616 11,308 5,654 2,827 8,482 4,241 12,724 6,362 3,181 9,544 4,772 2,386 1,193 3,580 1,790 895 2,686 1,343 4,030 2,015 6,046 3,023 9,070 4,535 13,606 6,803 20,410 10,205 30,616 15,308 7,654 3,827 11,482 5,741 17,224 8,612 4,306 2,153 6,460 3,230 1,615 4,846 2,423 7,270 3,635 10,906 5,453 16,360 8,180 4,090

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