3 × 5 × 17 × 1621

Prime Factor Structure

Factorization String 3 × 5 × 17 × 1621

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 700,704

Proper Divisor Sum 287,349

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #413353 ← → #413411

1 3 5 15 17 51 85 255 1,621 4,863 8,105 24,315 27,557 82,671 137,785 413,355

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

413,355 1,240,066 620,033 1,860,100 930,050 465,025 1,395,076 697,538 348,769 1,046,308 523,154 261,577 784,732 392,366 196,183 588,550 294,275 882,826 441,413 1,324,240 662,120 331,060 165,530 82,765 248,296 124,148 62,074 31,037 93,112 46,556 23,278 11,639 34,918 17,459 52,378 26,189 78,568 39,284 19,642 9,821 29,464 14,732 7,366 3,683 11,050 5,525 16,576 8,288 4,144 2,072 1,036 518 259 778 389 1,168 584 292 146 73

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