2 × 820343

Prime Factor Structure

Factorization String 2 × 820343

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,461,032

Proper Divisor Sum 820,346

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #1640677 ← → #1640689

1 2 820,343 1,640,686

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

1,640,686 820,343 2,461,030 1,230,515 3,691,546 1,845,773 5,537,320 2,768,660 1,384,330 692,165 2,076,496 1,038,248 519,124 259,562 129,781 389,344 194,672 97,336 48,668 24,334 12,167 36,502 18,251 54,754 27,377 82,132 41,066 20,533 61,600 30,800 15,400 7,700 3,850 1,925 5,776 2,888 1,444 722 361 1,084 542 271 814 407 1,222 611 1,834 917 2,752 1,376 688 344 172 86 43 130 65 196 98 49

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