13² × 37 × 53

Prime Factor Structure

Factorization String 13^2 × 37 × 53

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 375,516

Proper Divisor Sum 44,107

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #331399 ← → #331423

1 13 37 53 169 481 689 1,961 6,253 8,957 25,493 331,409

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

331,409 994,228 497,114 248,557 745,672 372,836 186,418 93,209 279,628 139,814 69,907 209,722 104,861 314,584 157,292 78,646 39,323 117,970 58,985 176,956 88,478 44,239 132,718 66,359 199,078 99,539 298,618 149,309 447,928 223,964 111,982 55,991 167,974 83,987 251,962 125,981 377,944 188,972 94,486 47,243 141,730 70,865 212,596 106,298 53,149 159,448 79,724 39,862 19,931 59,794 29,897 89,692 44,846 22,423 67,270 33,635 100,906 50,453 151,360 75,680

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