31 × 21211

Prime Factor Structure

Factorization String 31 × 21211

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 678,784

Proper Divisor Sum 21,243

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #657539 ← → #657557

1 31 21,211 657,541

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

657,541 1,972,624 986,312 493,156 246,578 123,289 369,868 184,934 92,467 277,402 138,701 416,104 208,052 104,026 52,013 156,040 78,020 39,010 19,505 58,516 29,258 14,629 43,888 21,944 10,972 5,486 2,743 8,230 4,115 12,346 6,173 18,520 9,260 4,630 2,315 6,946 3,473 10,420 5,210 2,605 7,816 3,908 1,954 977 2,932 1,466 733 2,200 1,100 550 275 826 413 1,240 620 310 155 466 233 700

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