13² × 17 × 6571

Prime Factor Structure

Factorization String 13^2 × 17 × 6571

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 21,648,168

Proper Divisor Sum 2,769,685

Digit Sum / Digital Root 47 (Root: 2)

Adjacent Primes #18878479 ← → #18878521

1 13 17 169 221 2,873 6,571 85,423 111,707 1,110,499 1,452,191 18,878,483

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

18,878,483 56,635,450 28,317,725 84,953,176 42,476,588 21,238,294 10,619,147 31,857,442 15,928,721 47,786,164 23,893,082 11,946,541 35,839,624 17,919,812 8,959,906 4,479,953 13,439,860 6,719,930 3,359,965 10,079,896 5,039,948 2,519,974 1,259,987 3,779,962 1,889,981 5,669,944 2,834,972 1,417,486 708,743 2,126,230 1,063,115 3,189,346 1,594,673 4,784,020 2,392,010 1,196,005 3,588,016 1,794,008 897,004 448,502 224,251 672,754 336,377 1,009,132 504,566 252,283 756,850 378,425 1,135,276 567,638 283,819 851,458 425,729 1,277,188 638,594 319,297 957,892 478,946 239,473 718,420

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