2² × 5 × 17² × 37

Prime Factor Structure

Factorization String 2^2 × 5 × 17^2 × 37

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 489,972

Proper Divisor Sum 276,112

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #213859 ← → #213881

1 2 4 5 10 17 20 34 37 68 74 85 148 170 185 289 340 370 578 629 740 1,156 1,258 1,445 2,516 2,890 3,145 5,780 6,290 10,693 12,580 21,386 42,772 53,465 106,930 213,860

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

213,860 106,930 53,465 160,396 80,198 40,099 120,298 60,149 180,448 90,224 45,112 22,556 11,278 5,639 16,918 8,459 25,378 12,689 38,068 19,034 9,517 28,552 14,276 7,138 3,569 10,708 5,354 2,677 8,032 4,016 2,008 1,004 502 251 754 377 1,132 566 283 850 425 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911 2,734 1,367

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