5² × 31 × 281

Prime Factor Structure

Factorization String 5^2 × 31 × 281

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 279,744

Proper Divisor Sum 61,969

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #217771 ← → #217781

1 5 25 31 155 281 775 1,405 7,025 8,711 43,555 217,775

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

217,775 653,326 326,663 979,990 489,995 1,469,986 734,993 2,204,980 1,102,490 551,245 1,653,736 826,868 413,434 206,717 620,152 310,076 155,038 77,519 232,558 116,279 348,838 174,419 523,258 261,629 784,888 392,444 196,222 98,111 294,334 147,167 441,502 220,751 662,254 331,127 993,382 496,691 1,490,074 745,037 2,235,112 1,117,556 558,778 279,389 838,168 419,084 209,542 104,771 314,314 157,157 471,472 235,736 117,868 58,934 29,467 88,402 44,201 132,604 66,302 33,151 99,454 49,727

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