3 × 7 × 181 × 521

Prime Factor Structure

Factorization String 3 × 7 × 181 × 521

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,040,128

Proper Divisor Sum 1,059,807

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #1980317 ← → #1980337

1 3 7 21 181 521 543 1,267 1,563 3,647 3,801 10,941 94,301 282,903 660,107 1,980,321

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

1,980,321 5,940,964 2,970,482 1,485,241 4,455,724 2,227,862 1,113,931 3,341,794 1,670,897 5,012,692 2,506,346 1,253,173 3,759,520 1,879,760 939,880 469,940 234,970 117,485 352,456 176,228 88,114 44,057 132,172 66,086 33,043 99,130 49,565 148,696 74,348 37,174 18,587 55,762 27,881 83,644 41,822 20,911 62,734 31,367 94,102 47,051 141,154 70,577 211,732 105,866 52,933 158,800 79,400 39,700 19,850 9,925 29,776 14,888 7,444 3,722 1,861 5,584 2,792 1,396 698 349

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