3 × 5 × 67 × 21881

Prime Factor Structure

Factorization String 3 × 5 × 67 × 21881

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 35,711,424

Proper Divisor Sum 13,721,019

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #21990373 ← → #21990413

1 3 5 15 67 201 335 1,005 21,881 65,643 109,405 328,215 1,466,027 4,398,081 7,330,135 21,990,405

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

21,990,405 65,971,216 32,985,608 16,492,804 8,246,402 4,123,201 12,369,604 6,184,802 3,092,401 9,277,204 4,638,602 2,319,301 6,957,904 3,478,952 1,739,476 869,738 434,869 1,304,608 652,304 326,152 163,076 81,538 40,769 122,308 61,154 30,577 91,732 45,866 22,933 68,800 34,400 17,200 8,600 4,300 2,150 1,075 3,226 1,613 4,840 2,420 1,210 605 1,816 908 454 227 682 341 1,024 512 256 128 64 32 16 8 4 2 1

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