821 × 5581

Prime Factor Structure

Factorization String 821 × 5581

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,588,404

Proper Divisor Sum 6,403

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #4581977 ← → #4582049

1 821 5,581 4,582,001

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

4,582,001 13,746,004 6,873,002 3,436,501 10,309,504 5,154,752 2,577,376 1,288,688 644,344 322,172 161,086 80,543 241,630 120,815 362,446 181,223 543,670 271,835 815,506 407,753 1,223,260 611,630 305,815 917,446 458,723 1,376,170 688,085 2,064,256 1,032,128 516,064 258,032 129,016 64,508 32,254 16,127 48,382 24,191 72,574 36,287 108,862 54,431 163,294 81,647 244,942 122,471 367,414 183,707 551,122 275,561 826,684 413,342 206,671 620,014 310,007 930,022 465,011 1,395,034 697,517 2,092,552 1,046,276

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