3 × 7 × 17 × 61

Prime Factor Structure

Factorization String 3 × 7 × 17 × 61

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 35,712

Proper Divisor Sum 13,935

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #21773 ← → #21787

1 3 7 17 21 51 61 119 183 357 427 1,037 1,281 3,111 7,259 21,777

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

21,777 65,332 32,666 16,333 49,000 24,500 12,250 6,125 18,376 9,188 4,594 2,297 6,892 3,446 1,723 5,170 2,585 7,756 3,878 1,939 5,818 2,909 8,728 4,364 2,182 1,091 3,274 1,637 4,912 2,456 1,228 614 307 922 461 1,384 692 346 173 520 260 130 65 196 98 49 148 74 37 112 56 28 14 7 22 11 34 17 52 26

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