2 × 13² × 631

Prime Factor Structure

Factorization String 2 × 13^2 × 631

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 346,968

Proper Divisor Sum 133,690

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #213263 ← → #213281

1 2 13 26 169 338 631 1,262 8,203 16,406 106,639 213,278

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

213,278 106,639 319,918 159,959 479,878 239,939 719,818 359,909 1,079,728 539,864 269,932 134,966 67,483 202,450 101,225 303,676 151,838 75,919 227,758 113,879 341,638 170,819 512,458 256,229 768,688 384,344 192,172 96,086 48,043 144,130 72,065 216,196 108,098 54,049 162,148 81,074 40,537 121,612 60,806 30,403 91,210 45,605 136,816 68,408 34,204 17,102 8,551 25,654 12,827 38,482 19,241 57,724 28,862 14,431 43,294 21,647 64,942 32,471 97,414 48,707

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