19 × 21491

Prime Factor Structure

Factorization String 19 × 21491

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 429,840

Proper Divisor Sum 21,511

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #408311 ← → #408337

1 19 21,491 408,329

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

408,329 1,224,988 612,494 306,247 918,742 459,371 1,378,114 689,057 2,067,172 1,033,586 516,793 1,550,380 775,190 387,595 1,162,786 581,393 1,744,180 872,090 436,045 1,308,136 654,068 327,034 163,517 490,552 245,276 122,638 61,319 183,958 91,979 275,938 137,969 413,908 206,954 103,477 310,432 155,216 77,608 38,804 19,402 9,701 29,104 14,552 7,276 3,638 1,819 5,458 2,729 8,188 4,094 2,047 6,142 3,071 9,214 4,607 13,822 6,911 20,734 10,367 31,102 15,551

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