2² × 5² × 21319

Prime Factor Structure

Factorization String 2^2 × 5^2 × 21319

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 4,626,440

Proper Divisor Sum 2,494,540

Digit Sum / Digital Root 16 (Root: 7)

Adjacent Primes #2131867 ← → #2131907

1 2 4 5 10 20 25 50 100 21,319 42,638 85,276 106,595 213,190 426,380 532,975 1,065,950 2,131,900

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

2,131,900 1,065,950 532,975 1,598,926 799,463 2,398,390 1,199,195 3,597,586 1,798,793 5,396,380 2,698,190 1,349,095 4,047,286 2,023,643 6,070,930 3,035,465 9,106,396 4,553,198 2,276,599 6,829,798 3,414,899 10,244,698 5,122,349 15,367,048 7,683,524 3,841,762 1,920,881 5,762,644 2,881,322 1,440,661 4,321,984 2,160,992 1,080,496 540,248 270,124 135,062 67,531 202,594 101,297 303,892 151,946 75,973 227,920 113,960 56,980 28,490 14,245 42,736 21,368 10,684 5,342 2,671 8,014 4,007 12,022 6,011 18,034 9,017 27,052 13,526

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