3 × 17 × 53 × 79

Prime Factor Structure

Factorization String 3 × 17 × 53 × 79

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 311,040

Proper Divisor Sum 97,503

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #213533 ← → #213539

1 3 17 51 53 79 159 237 901 1,343 2,703 4,029 4,187 12,561 71,179 213,537

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

213,537 640,612 320,306 160,153 480,460 240,230 120,115 360,346 180,173 540,520 270,260 135,130 67,565 202,696 101,348 50,674 25,337 76,012 38,006 19,003 57,010 28,505 85,516 42,758 21,379 64,138 32,069 96,208 48,104 24,052 12,026 6,013 18,040 9,020 4,510 2,255 6,766 3,383 10,150 5,075 15,226 7,613 22,840 11,420 5,710 2,855 8,566 4,283 12,850 6,425 19,276 9,638 4,819 14,458 7,229 21,688 10,844 5,422 2,711 8,134

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