5² × 839

Prime Factor Structure

Factorization String 5^2 × 839

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 26,040

Proper Divisor Sum 5,065

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #20963 ← → #20981

1 5 25 839 4,195 20,975

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

20,975 62,926 31,463 94,390 47,195 141,586 70,793 212,380 106,190 53,095 159,286 79,643 238,930 119,465 358,396 179,198 89,599 268,798 134,399 403,198 201,599 604,798 302,399 907,198 453,599 1,360,798 680,399 2,041,198 1,020,599 3,061,798 1,530,899 4,592,698 2,296,349 6,889,048 3,444,524 1,722,262 861,131 2,583,394 1,291,697 3,875,092 1,937,546 968,773 2,906,320 1,453,160 726,580 363,290 181,645 544,936 272,468 136,234 68,117 204,352 102,176 51,088 25,544 12,772 6,386 3,193 9,580 4,790

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