3 × 13² × 31 × 41

Prime Factor Structure

Factorization String 3 × 13^2 × 31 × 41

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 983,808

Proper Divisor Sum 339,411

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #644383 ← → #644401

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

644,397 1,933,192 966,596 483,298 241,649 724,948 362,474 181,237 543,712 271,856 135,928 67,964 33,982 16,991 50,974 25,487 76,462 38,231 114,694 57,347 172,042 86,021 258,064 129,032 64,516 32,258 16,129 48,388 24,194 12,097 36,292 18,146 9,073 27,220 13,610 6,805 20,416 10,208 5,104 2,552 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911 2,734 1,367 4,102

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