5 × 53 × 821

Prime Factor Structure

Factorization String 5 × 53 × 821

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 266,328

Proper Divisor Sum 48,763

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #217561 ← → #217573

1 5 53 265 821 4,105 43,513 217,565

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

217,565 652,696 326,348 163,174 81,587 244,762 122,381 367,144 183,572 91,786 45,893 137,680 68,840 34,420 17,210 8,605 25,816 12,908 6,454 3,227 9,682 4,841 14,524 7,262 3,631 10,894 5,447 16,342 8,171 24,514 12,257 36,772 18,386 9,193 27,580 13,790 6,895 20,686 10,343 31,030 15,515 46,546 23,273 69,820 34,910 17,455 52,366 26,183 78,550 39,275 117,826 58,913 176,740 88,370 44,185 132,556 66,278 33,139 99,418 49,709

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