2 × 5 × 13 × 16921

Prime Factor Structure

Factorization String 2 × 5 × 13 × 16921

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 4,264,344

Proper Divisor Sum 2,064,614

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #2199719 ← → #2199739

1 2 5 10 13 26 65 130 16,921 33,842 84,605 169,210 219,973 439,946 1,099,865 2,199,730

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

2,199,730 1,099,865 3,299,596 1,649,798 824,899 2,474,698 1,237,349 3,712,048 1,856,024 928,012 464,006 232,003 696,010 348,005 1,044,016 522,008 261,004 130,502 65,251 195,754 97,877 293,632 146,816 73,408 36,704 18,352 9,176 4,588 2,294 1,147 3,442 1,721 5,164 2,582 1,291 3,874 1,937 5,812 2,906 1,453 4,360 2,180 1,090 545 1,636 818 409 1,228 614 307 922 461 1,384 692 346 173 520 260 130 65

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