13 × 17 × 31²

Prime Factor Structure

Factorization String 13 × 17 × 31^2

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 250,236

Proper Divisor Sum 37,855

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #212369 ← → #212383

1 13 17 31 221 403 527 961 6,851 12,493 16,337 212,381

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

212,381 637,144 318,572 159,286 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 2,395 7,186 3,593 10,780 5,390 2,695 8,086

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