3 × 7 × 17 × 31 × 47

Prime Factor Structure

Factorization String 3 × 7 × 17 × 31 × 47

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 884,736

Proper Divisor Sum 364,587

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #520129 ← → #520151

1 3 7 17 21 31 47 51 93 119 141 217 329 357 527 651 799 987 1,457 1,581 2,397 3,689 4,371 5,593 10,199 11,067 16,779 24,769 30,597 74,307 173,383 520,149

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

520,149 1,560,448 780,224 390,112 195,056 97,528 48,764 24,382 12,191 36,574 18,287 54,862 27,431 82,294 41,147 123,442 61,721 185,164 92,582 46,291 138,874 69,437 208,312 104,156 52,078 26,039 78,118 39,059 117,178 58,589 175,768 87,884 43,942 21,971 65,914 32,957 98,872 49,436 24,718 12,359 37,078 18,539 55,618 27,809 83,428 41,714 20,857 62,572 31,286 15,643 46,930 23,465 70,396 35,198 17,599 52,798 26,399 79,198 39,599 118,798

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