2 × 13 × 61 × 257

Prime Factor Structure

Factorization String 2 × 13 × 61 × 257

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 671,832

Proper Divisor Sum 264,230

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #407599 ← → #407621

1 2 13 26 61 122 257 514 793 1,586 3,341 6,682 15,677 31,354 203,801 407,602

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

407,602 203,801 611,404 305,702 152,851 458,554 229,277 687,832 343,916 171,958 85,979 257,938 128,969 386,908 193,454 96,727 290,182 145,091 435,274 217,637 652,912 326,456 163,228 81,614 40,807 122,422 61,211 183,634 91,817 275,452 137,726 68,863 206,590 103,295 309,886 154,943 464,830 232,415 697,246 348,623 1,045,870 522,935 1,568,806 784,403 2,353,210 1,176,605 3,529,816 1,764,908 882,454 441,227 1,323,682 661,841 1,985,524 992,762 496,381 1,489,144 744,572 372,286 186,143 558,430

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