7 × 20809

Prime Factor Structure

Factorization String 7 × 20809

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 166,480

Proper Divisor Sum 20,817

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #145661 ← → #145679

1 7 20,809 145,663

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

145,663 436,990 218,495 655,486 327,743 983,230 491,615 1,474,846 737,423 2,212,270 1,106,135 3,318,406 1,659,203 4,977,610 2,488,805 7,466,416 3,733,208 1,866,604 933,302 466,651 1,399,954 699,977 2,099,932 1,049,966 524,983 1,574,950 787,475 2,362,426 1,181,213 3,543,640 1,771,820 885,910 442,955 1,328,866 664,433 1,993,300 996,650 498,325 1,494,976 747,488 373,744 186,872 93,436 46,718 23,359 70,078 35,039 105,118 52,559 157,678 78,839 236,518 118,259 354,778 177,389 532,168 266,084 133,042 66,521 199,564

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