3 × 13² × 43

Prime Factor Structure

Factorization String 3 × 13^2 × 43

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 32,208

Proper Divisor Sum 10,407

Digit Sum / Digital Root 12 (Root: 3)

Adjacent Primes #21799 ← → #21803

1 3 13 39 43 129 169 507 559 1,677 7,267 21,801

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

21,801 65,404 32,702 16,351 49,054 24,527 73,582 36,791 110,374 55,187 165,562 82,781 248,344 124,172 62,086 31,043 93,130 46,565 139,696 69,848 34,924 17,462 8,731 26,194 13,097 39,292 19,646 9,823 29,470 14,735 44,206 22,103 66,310 33,155 99,466 49,733 149,200 74,600 37,300 18,650 9,325 27,976 13,988 6,994 3,497 10,492 5,246 2,623 7,870 3,935 11,806 5,903 17,710 8,855 26,566 13,283 39,850 19,925 59,776 29,888

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