7 × 37 × 83

Prime Factor Structure

Factorization String 7 × 37 × 83

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 25,536

Proper Divisor Sum 4,039

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #21493 ← → #21499

1 7 37 83 259 581 3,071 21,497

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

21,497 64,492 32,246 16,123 48,370 24,185 72,556 36,278 18,139 54,418 27,209 81,628 40,814 20,407 61,222 30,611 91,834 45,917 137,752 68,876 34,438 17,219 51,658 25,829 77,488 38,744 19,372 9,686 4,843 14,530 7,265 21,796 10,898 5,449 16,348 8,174 4,087 12,262 6,131 18,394 9,197 27,592 13,796 6,898 3,449 10,348 5,174 2,587 7,762 3,881 11,644 5,822 2,911 8,734 4,367 13,102 6,551 19,654 9,827 29,482

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