2² × 159931

Prime Factor Structure

Factorization String 2^2 × 159931

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 1,119,524

Proper Divisor Sum 479,800

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #639719 ← → #639731

1 2 4 159,931 319,862 639,724

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

639,724 319,862 159,931 479,794 239,897 719,692 359,846 179,923 539,770 269,885 809,656 404,828 202,414 101,207 303,622 151,811 455,434 227,717 683,152 341,576 170,788 85,394 42,697 128,092 64,046 32,023 96,070 48,035 144,106 72,053 216,160 108,080 54,040 27,020 13,510 6,755 20,266 10,133 30,400 15,200 7,600 3,800 1,900 950 475 1,426 713 2,140 1,070 535 1,606 803 2,410 1,205 3,616 1,808 904 452 226 113

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