5² × 17 × 503

Prime Factor Structure

Factorization String 5^2 × 17 × 503

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 281,232

Proper Divisor Sum 67,457

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #213751 ← → #213791

1 5 17 25 85 425 503 2,515 8,551 12,575 42,755 213,775

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

213,775 641,326 320,663 961,990 480,995 1,442,986 721,493 2,164,480 1,082,240 541,120 270,560 135,280 67,640 33,820 16,910 8,455 25,366 12,683 38,050 19,025 57,076 28,538 14,269 42,808 21,404 10,702 5,351 16,054 8,027 24,082 12,041 36,124 18,062 9,031 27,094 13,547 40,642 20,321 60,964 30,482 15,241 45,724 22,862 11,431 34,294 17,147 51,442 25,721 77,164 38,582 19,291 57,874 28,937 86,812 43,406 21,703 65,110 32,555 97,666 48,833

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