2 × 3³ × 7 × 13 × 131

Prime Factor Structure

Factorization String 2 × 3^3 × 7 × 13 × 131

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 64

Divisor Sum (σ) 1,774,080

Proper Divisor Sum 1,130,346

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #643729 ← → #643751

1 2 3 6 7 9 13 14 18 21 26 27 39 42 54 63 78 91 117 126 131 182 189 234 262 273 351 378 393 546 702 786 819 917 1,179 1,638 1,703 1,834 2,358 2,457 2,751 3,406 3,537 4,914 5,109 5,502 7,074 8,253 10,218 11,921 15,327 16,506 23,842 24,759 30,654 35,763 45,981 49,518 71,526 91,962

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

643,734 321,867 965,602 482,801 1,448,404 724,202 362,101 1,086,304 543,152 271,576 135,788 67,894 33,947 101,842 50,921 152,764 76,382 38,191 114,574 57,287 171,862 85,931 257,794 128,897 386,692 193,346 96,673 290,020 145,010 72,505 217,516 108,758 54,379 163,138 81,569 244,708 122,354 61,177 183,532 91,766 45,883 137,650 68,825 206,476 103,238 51,619 154,858 77,429 232,288 116,144 58,072 29,036 14,518 7,259 21,778 10,889 32,668 16,334 8,167 24,502

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