3 × 13 × 131 × 821

Prime Factor Structure

Factorization String 3 × 13 × 131 × 821

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 6,076,224

Proper Divisor Sum 1,881,735

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #4194451 ← → #4194493

1 3 13 39 131 393 821 1,703 2,463 5,109 10,673 32,019 107,551 322,653 1,398,163 4,194,489

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

4,194,489 12,583,468 6,291,734 3,145,867 9,437,602 4,718,801 14,156,404 7,078,202 3,539,101 10,617,304 5,308,652 2,654,326 1,327,163 3,981,490 1,990,745 5,972,236 2,986,118 1,493,059 4,479,178 2,239,589 6,718,768 3,359,384 1,679,692 839,846 419,923 1,259,770 629,885 1,889,656 944,828 472,414 236,207 708,622 354,311 1,062,934 531,467 1,594,402 797,201 2,391,604 1,195,802 597,901 1,793,704 896,852 448,426 224,213 672,640 336,320 168,160 84,080 42,040 21,020 10,510 5,255 15,766 7,883 23,650 11,825 35,476 17,738 8,869 26,608

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