5 × 521 × 821

Prime Factor Structure

Factorization String 5 × 521 × 821

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 2,574,504

Proper Divisor Sum 435,799

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #2138693 ← → #2138713

1 5 521 821 2,605 4,105 427,741 2,138,705

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

2,138,705 6,416,116 3,208,058 1,604,029 4,812,088 2,406,044 1,203,022 601,511 1,804,534 902,267 2,706,802 1,353,401 4,060,204 2,030,102 1,015,051 3,045,154 1,522,577 4,567,732 2,283,866 1,141,933 3,425,800 1,712,900 856,450 428,225 1,284,676 642,338 321,169 963,508 481,754 240,877 722,632 361,316 180,658 90,329 270,988 135,494 67,747 203,242 101,621 304,864 152,432 76,216 38,108 19,054 9,527 28,582 14,291 42,874 21,437 64,312 32,156 16,078 8,039 24,118 12,059 36,178 18,089 54,268 27,134 13,567

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