2² × 5³ × 179 × 239

Prime Factor Structure

Factorization String 2^2 × 5^3 × 179 × 239

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 47,174,400

Proper Divisor Sum 25,783,900

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #21390497 ← → #21390503

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

21,390,500 10,695,250 5,347,625 16,042,876 8,021,438 4,010,719 12,032,158 6,016,079 18,048,238 9,024,119 27,072,358 13,536,179 40,608,538 20,304,269 60,912,808 30,456,404 15,228,202 7,614,101 22,842,304 11,421,152 5,710,576 2,855,288 1,427,644 713,822 356,911 1,070,734 535,367 1,606,102 803,051 2,409,154 1,204,577 3,613,732 1,806,866 903,433 2,710,300 1,355,150 677,575 2,032,726 1,016,363 3,049,090 1,524,545 4,573,636 2,286,818 1,143,409 3,430,228 1,715,114 857,557 2,572,672 1,286,336 643,168 321,584 160,792 80,396 40,198 20,099 60,298 30,149 90,448 45,224 22,612

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