3 × 5 × 17 × 37 × 43

Prime Factor Structure

Factorization String 3 × 5 × 17 × 37 × 43

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 722,304

Proper Divisor Sum 316,599

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #405703 ← → #405709

1 3 5 15 17 37 43 51 85 111 129 185 215 255 555 629 645 731 1,591 1,887 2,193 3,145 3,655 4,773 7,955 9,435 10,965 23,865 27,047 81,141 135,235 405,705

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

405,705 1,217,116 608,558 304,279 912,838 456,419 1,369,258 684,629 2,053,888 1,026,944 513,472 256,736 128,368 64,184 32,092 16,046 8,023 24,070 12,035 36,106 18,053 54,160 27,080 13,540 6,770 3,385 10,156 5,078 2,539 7,618 3,809 11,428 5,714 2,857 8,572 4,286 2,143 6,430 3,215 9,646 4,823 14,470 7,235 21,706 10,853 32,560 16,280 8,140 4,070 2,035 6,106 3,053 9,160 4,580 2,290 1,145 3,436 1,718 859 2,578

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