13 × 17 × 977

Prime Factor Structure

Factorization String 13 × 17 × 977

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 246,456

Proper Divisor Sum 30,539

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #215909 ← → #215921

1 13 17 221 977 12,701 16,609 215,917

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

215,917 647,752 323,876 161,938 80,969 242,908 121,454 60,727 182,182 91,091 273,274 136,637 409,912 204,956 102,478 51,239 153,718 76,859 230,578 115,289 345,868 172,934 86,467 259,402 129,701 389,104 194,552 97,276 48,638 24,319 72,958 36,479 109,438 54,719 164,158 82,079 246,238 123,119 369,358 184,679 554,038 277,019 831,058 415,529 1,246,588 623,294 311,647 934,942 467,471 1,402,414 701,207 2,103,622 1,051,811 3,155,434 1,577,717 4,733,152 2,366,576 1,183,288 591,644 295,822

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