2² × 128939

Prime Factor Structure

Factorization String 2^2 × 128939

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 902,580

Proper Divisor Sum 386,824

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #515741 ← → #515761

1 2 4 128,939 257,878 515,756

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

515,756 257,878 128,939 386,818 193,409 580,228 290,114 145,057 435,172 217,586 108,793 326,380 163,190 81,595 244,786 122,393 367,180 183,590 91,795 275,386 137,693 413,080 206,540 103,270 51,635 154,906 77,453 232,360 116,180 58,090 29,045 87,136 43,568 21,784 10,892 5,446 2,723 8,170 4,085 12,256 6,128 3,064 1,532 766 383 1,150 575 1,726 863 2,590 1,295 3,886 1,943 5,830 2,915 8,746 4,373 13,120 6,560 3,280

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