7 × 53 × 83 × 137

Prime Factor Structure

Factorization String 7 × 53 × 83 × 137

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 5,007,744

Proper Divisor Sum 789,103

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #4218631 ← → #4218667

1 7 53 83 137 371 581 959 4,399 7,261 11,371 30,793 50,827 79,597 602,663 4,218,641

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

4,218,641 12,655,924 6,327,962 3,163,981 9,491,944 4,745,972 2,372,986 1,186,493 3,559,480 1,779,740 889,870 444,935 1,334,806 667,403 2,002,210 1,001,105 3,003,316 1,501,658 750,829 2,252,488 1,126,244 563,122 281,561 844,684 422,342 211,171 633,514 316,757 950,272 475,136 237,568 118,784 59,392 29,696 14,848 7,424 3,712 1,856 928 464 232 116 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4

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