2 × 5² × 13 × 397

Prime Factor Structure

Factorization String 2 × 5^2 × 13 × 397

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 518,196

Proper Divisor Sum 260,146

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #258031 ← → #258061

1 2 5 10 13 25 26 50 65 130 325 397 650 794 1,985 3,970 5,161 9,925 10,322 19,850 25,805 51,610 129,025 258,050

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

258,050 129,025 387,076 193,538 96,769 290,308 145,154 72,577 217,732 108,866 54,433 163,300 81,650 40,825 122,476 61,238 30,619 91,858 45,929 137,788 68,894 34,447 103,342 51,671 155,014 77,507 232,522 116,261 348,784 174,392 87,196 43,598 21,799 65,398 32,699 98,098 49,049 147,148 73,574 36,787 110,362 55,181 165,544 82,772 41,386 20,693 62,080 31,040 15,520 7,760 3,880 1,940 970 485 1,456 728 364 182 91 274

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