17 × 12721

Prime Factor Structure

Factorization String 17 × 12721

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 228,996

Proper Divisor Sum 12,739

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #216233 ← → #216259

1 17 12,721 216,257

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

216,257 648,772 324,386 162,193 486,580 243,290 121,645 364,936 182,468 91,234 45,617 136,852 68,426 34,213 102,640 51,320 25,660 12,830 6,415 19,246 9,623 28,870 14,435 43,306 21,653 64,960 32,480 16,240 8,120 4,060 2,030 1,015 3,046 1,523 4,570 2,285 6,856 3,428 1,714 857 2,572 1,286 643 1,930 965 2,896 1,448 724 362 181 544 272 136 68 34 17 52 26 13 40

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