3² × 19 × 37 × 109

Prime Factor Structure

Factorization String 3^2 × 19 × 37 × 109

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,086,800

Proper Divisor Sum 397,157

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #689641 ← → #689693

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

689,643 2,068,930 1,034,465 3,103,396 1,551,698 775,849 2,327,548 1,163,774 581,887 1,745,662 872,831 2,618,494 1,309,247 3,927,742 1,963,871 5,891,614 2,945,807 8,837,422 4,418,711 13,256,134 6,628,067 19,884,202 9,942,101 29,826,304 14,913,152 7,456,576 3,728,288 1,864,144 932,072 466,036 233,018 116,509 349,528 174,764 87,382 43,691 131,074 65,537 196,612 98,306 49,153 147,460 73,730 36,865 110,596 55,298 27,649 82,948 41,474 20,737 62,212 31,106 15,553 46,660 23,330 11,665 34,996 17,498 8,749 26,248

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