3 × 13 × 17 × 971

Prime Factor Structure

Factorization String 3 × 13 × 17 × 971

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 979,776

Proper Divisor Sum 336,003

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #643751 ← → #643781

1 3 13 17 39 51 221 663 971 2,913 12,623 16,507 37,869 49,521 214,591 643,773

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

643,773 1,931,320 965,660 482,830 241,415 724,246 362,123 1,086,370 543,185 1,629,556 814,778 407,389 1,222,168 611,084 305,542 152,771 458,314 229,157 687,472 343,736 171,868 85,934 42,967 128,902 64,451 193,354 96,677 290,032 145,016 72,508 36,254 18,127 54,382 27,191 81,574 40,787 122,362 61,181 183,544 91,772 45,886 22,943 68,830 34,415 103,246 51,623 154,870 77,435 232,306 116,153 348,460 174,230 87,115 261,346 130,673 392,020 196,010 98,005 294,016 147,008

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