3 × 19 × 83 × 139

Prime Factor Structure

Factorization String 3 × 19 × 83 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 940,800

Proper Divisor Sum 283,191

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #657607 ← → #657617

1 3 19 57 83 139 249 417 1,577 2,641 4,731 7,923 11,537 34,611 219,203 657,609

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

657,609 1,972,828 986,414 493,207 1,479,622 739,811 2,219,434 1,109,717 3,329,152 1,664,576 832,288 416,144 208,072 104,036 52,018 26,009 78,028 39,014 19,507 58,522 29,261 87,784 43,892 21,946 10,973 32,920 16,460 8,230 4,115 12,346 6,173 18,520 9,260 4,630 2,315 6,946 3,473 10,420 5,210 2,605 7,816 3,908 1,954 977 2,932 1,466 733 2,200 1,100 550 275 826 413 1,240 620 310 155 466 233 700

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