2² × 5 × 19861

Prime Factor Structure

Factorization String 2^2 × 5 × 19861

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 834,204

Proper Divisor Sum 436,984

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #397217 ← → #397223

1 2 4 5 10 20 19,861 39,722 79,444 99,305 198,610 397,220

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

397,220 198,610 99,305 297,916 148,958 74,479 223,438 111,719 335,158 167,579 502,738 251,369 754,108 377,054 188,527 565,582 282,791 848,374 424,187 1,272,562 636,281 1,908,844 954,422 477,211 1,431,634 715,817 2,147,452 1,073,726 536,863 1,610,590 805,295 2,415,886 1,207,943 3,623,830 1,811,915 5,435,746 2,717,873 8,153,620 4,076,810 2,038,405 6,115,216 3,057,608 1,528,804 764,402 382,201 1,146,604 573,302 286,651 859,954 429,977 1,289,932 644,966 322,483 967,450 483,725 1,451,176 725,588 362,794 181,397 544,192

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