7 × 13 × 17 × 1381

Prime Factor Structure

Factorization String 7 × 13 × 17 × 1381

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,786,112

Proper Divisor Sum 649,705

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #2136391 ← → #2136419

1 7 13 17 91 119 221 1,381 1,547 9,667 17,953 23,477 125,671 164,339 305,201 2,136,407

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

2,136,407 6,409,222 3,204,611 9,613,834 4,806,917 14,420,752 7,210,376 3,605,188 1,802,594 901,297 2,703,892 1,351,946 675,973 2,027,920 1,013,960 506,980 253,490 126,745 380,236 190,118 95,059 285,178 142,589 427,768 213,884 106,942 53,471 160,414 80,207 240,622 120,311 360,934 180,467 541,402 270,701 812,104 406,052 203,026 101,513 304,540 152,270 76,135 228,406 114,203 342,610 171,305 513,916 256,958 128,479 385,438 192,719 578,158 289,079 867,238 433,619 1,300,858 650,429 1,951,288 975,644 487,822

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