3 × 13 × 53 × 311

Prime Factor Structure

Factorization String 3 × 13 × 53 × 311

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 943,488

Proper Divisor Sum 300,651

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #642833 ← → #642853

1 3 13 39 53 159 311 689 933 2,067 4,043 12,129 16,483 49,449 214,279 642,837

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

642,837 1,928,512 964,256 482,128 241,064 120,532 60,266 30,133 90,400 45,200 22,600 11,300 5,650 2,825 8,476 4,238 2,119 6,358 3,179 9,538 4,769 14,308 7,154 3,577 10,732 5,366 2,683 8,050 4,025 12,076 6,038 3,019 9,058 4,529 13,588 6,794 3,397 10,192 5,096 2,548 1,274 637 1,912 956 478 239 718 359 1,078 539 1,618 809 2,428 1,214 607 1,822 911 2,734 1,367 4,102

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