13 × 1667

Prime Factor Structure

Factorization String 13 × 1667

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 23,352

Proper Divisor Sum 1,681

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #21661 ← → #21673

1 13 1,667 21,671

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

21,671 65,014 32,507 97,522 48,761 146,284 73,142 36,571 109,714 54,857 164,572 82,286 41,143 123,430 61,715 185,146 92,573 277,720 138,860 69,430 34,715 104,146 52,073 156,220 78,110 39,055 117,166 58,583 175,750 87,875 263,626 131,813 395,440 197,720 98,860 49,430 24,715 74,146 37,073 111,220 55,610 27,805 83,416 41,708 20,854 10,427 31,282 15,641 46,924 23,462 11,731 35,194 17,597 52,792 26,396 13,198 6,599 19,798 9,899 29,698

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