2 × 643583

Prime Factor Structure

Factorization String 2 × 643583

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 1,930,752

Proper Divisor Sum 643,586

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #1287163 ← → #1287173

1 2 643,583 1,287,166

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

1,287,166 643,583 1,930,750 965,375 2,896,126 1,448,063 4,344,190 2,172,095 6,516,286 3,258,143 9,774,430 4,887,215 14,661,646 7,330,823 21,992,470 10,996,235 32,988,706 16,494,353 49,483,060 24,741,530 12,370,765 37,112,296 18,556,148 9,278,074 4,639,037 13,917,112 6,958,556 3,479,278 1,739,639 5,218,918 2,609,459 7,828,378 3,914,189 11,742,568 5,871,284 2,935,642 1,467,821 4,403,464 2,201,732 1,100,866 550,433 1,651,300 825,650 412,825 1,238,476 619,238 309,619 928,858 464,429 1,393,288 696,644 348,322 174,161 522,484 261,242 130,621 391,864 195,932 97,966 48,983

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