3 × 5 × 13 × 20563

Prime Factor Structure

Factorization String 3 × 5 × 13 × 20563

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 6,909,504

Proper Divisor Sum 2,899,719

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #4009781 ← → #4009787

1 3 5 13 15 39 65 195 20,563 61,689 102,815 267,319 308,445 801,957 1,336,595 4,009,785

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

4,009,785 12,029,356 6,014,678 3,007,339 9,022,018 4,511,009 13,533,028 6,766,514 3,383,257 10,149,772 5,074,886 2,537,443 7,612,330 3,806,165 11,418,496 5,709,248 2,854,624 1,427,312 713,656 356,828 178,414 89,207 267,622 133,811 401,434 200,717 602,152 301,076 150,538 75,269 225,808 112,904 56,452 28,226 14,113 42,340 21,170 10,585 31,756 15,878 7,939 23,818 11,909 35,728 17,864 8,932 4,466 2,233 6,700 3,350 1,675 5,026 2,513 7,540 3,770 1,885 5,656 2,828 1,414 707

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