3 × 13 × 548629

Prime Factor Structure

Factorization String 3 × 13 × 548629

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 30,723,280

Proper Divisor Sum 9,326,749

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #21396511 ← → #21396533

1 3 13 39 548,629 1,645,887 7,132,177 21,396,531

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

21,396,531 64,189,594 32,094,797 96,284,392 48,142,196 24,071,098 12,035,549 36,106,648 18,053,324 9,026,662 4,513,331 13,539,994 6,769,997 20,309,992 10,154,996 5,077,498 2,538,749 7,616,248 3,808,124 1,904,062 952,031 2,856,094 1,428,047 4,284,142 2,142,071 6,426,214 3,213,107 9,639,322 4,819,661 14,458,984 7,229,492 3,614,746 1,807,373 5,422,120 2,711,060 1,355,530 677,765 2,033,296 1,016,648 508,324 254,162 127,081 381,244 190,622 95,311 285,934 142,967 428,902 214,451 643,354 321,677 965,032 482,516 241,258 120,629 361,888 180,944 90,472 45,236 22,618

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