3 × 5 × 167 × 257

Prime Factor Structure

Factorization String 3 × 5 × 167 × 257

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,040,256

Proper Divisor Sum 396,471

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #643781 ← → #643847

1 3 5 15 167 257 501 771 835 1,285 2,505 3,855 42,919 128,757 214,595 643,785

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

643,785 1,931,356 965,678 482,839 1,448,518 724,259 2,172,778 1,086,389 3,259,168 1,629,584 814,792 407,396 203,698 101,849 305,548 152,774 76,387 229,162 114,581 343,744 171,872 85,936 42,968 21,484 10,742 5,371 16,114 8,057 24,172 12,086 6,043 18,130 9,065 27,196 13,598 6,799 20,398 10,199 30,598 15,299 45,898 22,949 68,848 34,424 17,212 8,606 4,303 12,910 6,455 19,366 9,683 29,050 14,525 43,576 21,788 10,894 5,447 16,342 8,171 24,514

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