2 × 3 × 7 × 17 × 19 × 1621

Prime Factor Structure

Factorization String 2 × 3 × 7 × 17 × 19 × 1621

Distinct Prime Factors 6

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 64

Divisor Sum (σ) 56,056,320

Proper Divisor Sum 34,065,834

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #21990457 ← → #21990487

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

21,990,486 10,995,243 32,985,730 16,492,865 49,478,596 24,739,298 12,369,649 37,108,948 18,554,474 9,277,237 27,831,712 13,915,856 6,957,928 3,478,964 1,739,482 869,741 2,609,224 1,304,612 652,306 326,153 978,460 489,230 244,615 733,846 366,923 1,100,770 550,385 1,651,156 825,578 412,789 1,238,368 619,184 309,592 154,796 77,398 38,699 116,098 58,049 174,148 87,074 43,537 130,612 65,306 32,653 97,960 48,980 24,490 12,245 36,736 18,368 9,184 4,592 2,296 1,148 574 287 862 431 1,294 647

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