2² × 41 × 47 × 83

Prime Factor Structure

Factorization String 2^2 × 41 × 47 × 83

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,185,408

Proper Divisor Sum 545,644

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #639757 ← → #639833

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

639,764 319,882 159,941 479,824 239,912 119,956 59,978 29,989 89,968 44,984 22,492 11,246 5,623 16,870 8,435 25,306 12,653 37,960 18,980 9,490 4,745 14,236 7,118 3,559 10,678 5,339 16,018 8,009 24,028 12,014 6,007 18,022 9,011 27,034 13,517 40,552 20,276 10,138 5,069 15,208 7,604 3,802 1,901 5,704 2,852 1,426 713 2,140 1,070 535 1,606 803 2,410 1,205 3,616 1,808 904 452 226 113

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