409 × 1621

Prime Factor Structure

Factorization String 409 × 1621

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 665,020

Proper Divisor Sum 2,031

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #662957 ← → #662999

1 409 1,621 662,989

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

662,989 1,988,968 994,484 497,242 248,621 745,864 372,932 186,466 93,233 279,700 139,850 69,925 209,776 104,888 52,444 26,222 13,111 39,334 19,667 59,002 29,501 88,504 44,252 22,126 11,063 33,190 16,595 49,786 24,893 74,680 37,340 18,670 9,335 28,006 14,003 42,010 21,005 63,016 31,508 15,754 7,877 23,632 11,816 5,908 2,954 1,477 4,432 2,216 1,108 554 277 832 416 208 104 52 26 13 40 20

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