2³ × 5 × 41 × 421

Prime Factor Structure

Factorization String 2^3 × 5 × 41 × 421

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 1,595,160

Proper Divisor Sum 904,720

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #690439 ← → #690449

1 2 4 5 8 10 20 40 41 82 164 205 328 410 421 820 842 1,640 1,684 2,105 3,368 4,210 8,420 16,840 17,261 34,522 69,044 86,305 138,088 172,610 345,220 690,440

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

690,440 345,220 172,610 86,305 258,916 129,458 64,729 194,188 97,094 48,547 145,642 72,821 218,464 109,232 54,616 27,308 13,654 6,827 20,482 10,241 30,724 15,362 7,681 23,044 11,522 5,761 17,284 8,642 4,321 12,964 6,482 3,241 9,724 4,862 2,431 7,294 3,647 10,942 5,471 16,414 8,207 24,622 12,311 36,934 18,467 55,402 27,701 83,104 41,552 20,776 10,388 5,194 2,597 7,792 3,896 1,948 974 487 1,462 731

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