3² × 7 × 19 × 431

Prime Factor Structure

Factorization String 3^2 × 7 × 19 × 431

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 898,560

Proper Divisor Sum 382,653

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #515887 ← → #515917

1 3 7 9 19 21 57 63 133 171 399 431 1,197 1,293 3,017 3,879 8,189 9,051 24,567 27,153 57,323 73,701 171,969 515,907

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

515,907 1,547,722 773,861 2,321,584 1,160,792 580,396 290,198 145,099 435,298 217,649 652,948 326,474 163,237 489,712 244,856 122,428 61,214 30,607 91,822 45,911 137,734 68,867 206,602 103,301 309,904 154,952 77,476 38,738 19,369 58,108 29,054 14,527 43,582 21,791 65,374 32,687 98,062 49,031 147,094 73,547 220,642 110,321 330,964 165,482 82,741 248,224 124,112 62,056 31,028 15,514 7,757 23,272 11,636 5,818 2,909 8,728 4,364 2,182 1,091 3,274

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