3 × 7 × 13 × 41 × 59

Prime Factor Structure

Factorization String 3 × 7 × 13 × 41 × 59

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 1,128,960

Proper Divisor Sum 468,573

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #660379 ← → #660391

1 3 7 13 21 39 41 59 91 123 177 273 287 413 533 767 861 1,239 1,599 2,301 2,419 3,731 5,369 7,257 11,193 16,107 16,933 31,447 50,799 94,341 220,129 660,387

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

660,387 1,981,162 990,581 2,971,744 1,485,872 742,936 371,468 185,734 92,867 278,602 139,301 417,904 208,952 104,476 52,238 26,119 78,358 39,179 117,538 58,769 176,308 88,154 44,077 132,232 66,116 33,058 16,529 49,588 24,794 12,397 37,192 18,596 9,298 4,649 13,948 6,974 3,487 10,462 5,231 15,694 7,847 23,542 11,771 35,314 17,657 52,972 26,486 13,243 39,730 19,865 59,596 29,798 14,899 44,698 22,349 67,048 33,524 16,762 8,381 25,144

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