13² × 17 × 139

Prime Factor Structure

Factorization String 13^2 × 17 × 139

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 461,160

Proper Divisor Sum 61,813

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #399283 ← → #399353

1 13 17 139 169 221 1,807 2,363 2,873 23,491 30,719 399,347

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

399,347 1,198,042 599,021 1,797,064 898,532 449,266 224,633 673,900 336,950 168,475 505,426 252,713 758,140 379,070 189,535 568,606 284,303 852,910 426,455 1,279,366 639,683 1,919,050 959,525 2,878,576 1,439,288 719,644 359,822 179,911 539,734 269,867 809,602 404,801 1,214,404 607,202 303,601 910,804 455,402 227,701 683,104 341,552 170,776 85,388 42,694 21,347 64,042 32,021 96,064 48,032 24,016 12,008 6,004 3,002 1,501 4,504 2,252 1,126 563 1,690 845 2,536

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