2⁴ × 5 × 20509

Prime Factor Structure

Factorization String 2^4 × 5 × 20509

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 20

Divisor Sum (σ) 3,814,860

Proper Divisor Sum 2,174,140

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #1640701 ← → #1640729

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

1,640,720 820,360 410,180 205,090 102,545 307,636 153,818 76,909 230,728 115,364 57,682 28,841 86,524 43,262 21,631 64,894 32,447 97,342 48,671 146,014 73,007 219,022 109,511 328,534 164,267 492,802 246,401 739,204 369,602 184,801 554,404 277,202 138,601 415,804 207,902 103,951 311,854 155,927 467,782 233,891 701,674 350,837 1,052,512 526,256 263,128 131,564 65,782 32,891 98,674 49,337 148,012 74,006 37,003 111,010 55,505 166,516 83,258 41,629 124,888 62,444

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