2² × 5 × 21407

Prime Factor Structure

Factorization String 2^2 × 5 × 21407

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 899,136

Proper Divisor Sum 470,996

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #428137 ← → #428143

1 2 4 5 10 20 21,407 42,814 85,628 107,035 214,070 428,140

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

428,140 214,070 107,035 321,106 160,553 481,660 240,830 120,415 361,246 180,623 541,870 270,935 812,806 406,403 1,219,210 609,605 1,828,816 914,408 457,204 228,602 114,301 342,904 171,452 85,726 42,863 128,590 64,295 192,886 96,443 289,330 144,665 433,996 216,998 108,499 325,498 162,749 488,248 244,124 122,062 61,031 183,094 91,547 274,642 137,321 411,964 205,982 102,991 308,974 154,487 463,462 231,731 695,194 347,597 1,042,792 521,396 260,698 130,349 391,048 195,524 97,762

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