3 × 13 × 31 × 563

Prime Factor Structure

Factorization String 3 × 13 × 31 × 563

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,010,688

Proper Divisor Sum 330,021

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #680657 ← → #680681

1 3 13 31 39 93 403 563 1,209 1,689 7,319 17,453 21,957 52,359 226,889 680,667

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

680,667 2,042,002 1,021,001 3,063,004 1,531,502 765,751 2,297,254 1,148,627 3,445,882 1,722,941 5,168,824 2,584,412 1,292,206 646,103 1,938,310 969,155 2,907,466 1,453,733 4,361,200 2,180,600 1,090,300 545,150 272,575 817,726 408,863 1,226,590 613,295 1,839,886 919,943 2,759,830 1,379,915 4,139,746 2,069,873 6,209,620 3,104,810 1,552,405 4,657,216 2,328,608 1,164,304 582,152 291,076 145,538 72,769 218,308 109,154 54,577 163,732 81,866 40,933 122,800 61,400 30,700 15,350 7,675 23,026 11,513 34,540 17,270 8,635 25,906

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