11 × 19 × 23 × 139

Prime Factor Structure

Factorization String 11 × 19 × 23 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 806,400

Proper Divisor Sum 138,227

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #668159 ← → #668179

1 11 19 23 139 209 253 437 1,529 2,641 3,197 4,807 29,051 35,167 60,743 668,173

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

668,173 2,004,520 1,002,260 501,130 250,565 751,696 375,848 187,924 93,962 46,981 140,944 70,472 35,236 17,618 8,809 26,428 13,214 6,607 19,822 9,911 29,734 14,867 44,602 22,301 66,904 33,452 16,726 8,363 25,090 12,545 37,636 18,818 9,409 28,228 14,114 7,057 21,172 10,586 5,293 15,880 7,940 3,970 1,985 5,956 2,978 1,489 4,468 2,234 1,117 3,352 1,676 838 419 1,258 629 1,888 944 472 236 118

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