5 × 13 × 157 × 251

Prime Factor Structure

Factorization String 5 × 13 × 157 × 251

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,344,544

Proper Divisor Sum 783,089

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #2561431 ← → #2561491

1 5 13 65 157 251 785 1,255 2,041 3,263 10,205 16,315 39,407 197,035 512,291 2,561,455

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

2,561,455 7,684,366 3,842,183 11,526,550 5,763,275 17,289,826 8,644,913 25,934,740 12,967,370 6,483,685 19,451,056 9,725,528 4,862,764 2,431,382 1,215,691 3,647,074 1,823,537 5,470,612 2,735,306 1,367,653 4,102,960 2,051,480 1,025,740 512,870 256,435 769,306 384,653 1,153,960 576,980 288,490 144,245 432,736 216,368 108,184 54,092 27,046 13,523 40,570 20,285 60,856 30,428 15,214 7,607 22,822 11,411 34,234 17,117 51,352 25,676 12,838 6,419 19,258 9,629 28,888 14,444 7,222 3,611 10,834 5,417 16,252

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