3 × 13 × 19 × 163 × 179

Prime Factor Structure

Factorization String 3 × 13 × 19 × 163 × 179

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 33,062,400

Proper Divisor Sum 11,442,243

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #21620153 ← → #21620189

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

21,620,157 64,860,472 32,430,236 16,215,118 8,107,559 24,322,678 12,161,339 36,484,018 18,242,009 54,726,028 27,363,014 13,681,507 41,044,522 20,522,261 61,566,784 30,783,392 15,391,696 7,695,848 3,847,924 1,923,962 961,981 2,885,944 1,442,972 721,486 360,743 1,082,230 541,115 1,623,346 811,673 2,435,020 1,217,510 608,755 1,826,266 913,133 2,739,400 1,369,700 684,850 342,425 1,027,276 513,638 256,819 770,458 385,229 1,155,688 577,844 288,922 144,461 433,384 216,692 108,346 54,173 162,520 81,260 40,630 20,315 60,946 30,473 91,420 45,710 22,855

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