2 × 11 × 43 × 677

Prime Factor Structure

Factorization String 2 × 11 × 43 × 677

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,073,952

Proper Divisor Sum 433,510

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #640421 ← → #640457

1 2 11 22 43 86 473 677 946 1,354 7,447 14,894 29,111 58,222 320,221 640,442

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

640,442 320,221 960,664 480,332 240,166 120,083 360,250 180,125 540,376 270,188 135,094 67,547 202,642 101,321 303,964 151,982 75,991 227,974 113,987 341,962 170,981 512,944 256,472 128,236 64,118 32,059 96,178 48,089 144,268 72,134 36,067 108,202 54,101 162,304 81,152 40,576 20,288 10,144 5,072 2,536 1,268 634 317 952 476 238 119 358 179 538 269 808 404 202 101 304 152 76 38 19

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