3 × 7 × 643

Prime Factor Structure

Factorization String 3 × 7 × 643

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 20,608

Proper Divisor Sum 7,105

Digit Sum / Digital Root 12 (Root: 3)

Adjacent Primes #13499 ← → #13513

1 3 7 21 643 1,929 4,501 13,503

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

13,503 40,510 20,255 60,766 30,383 91,150 45,575 136,726 68,363 205,090 102,545 307,636 153,818 76,909 230,728 115,364 57,682 28,841 86,524 43,262 21,631 64,894 32,447 97,342 48,671 146,014 73,007 219,022 109,511 328,534 164,267 492,802 246,401 739,204 369,602 184,801 554,404 277,202 138,601 415,804 207,902 103,951 311,854 155,927 467,782 233,891 701,674 350,837 1,052,512 526,256 263,128 131,564 65,782 32,891 98,674 49,337 148,012 74,006 37,003 111,010

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