7 × 11 × 13 × 641

Prime Factor Structure

Factorization String 7 × 11 × 13 × 641

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 862,848

Proper Divisor Sum 221,207

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #641639 ← → #641681

1 7 11 13 77 91 143 641 1,001 4,487 7,051 8,333 49,357 58,331 91,663 641,641

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

641,641 1,924,924 962,462 481,231 1,443,694 721,847 2,165,542 1,082,771 3,248,314 1,624,157 4,872,472 2,436,236 1,218,118 609,059 1,827,178 913,589 2,740,768 1,370,384 685,192 342,596 171,298 85,649 256,948 128,474 64,237 192,712 96,356 48,178 24,089 72,268 36,134 18,067 54,202 27,101 81,304 40,652 20,326 10,163 30,490 15,245 45,736 22,868 11,434 5,717 17,152 8,576 4,288 2,144 1,072 536 268 134 67 202 101 304 152 76 38 19

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