2² × 3² × 13 × 1381

Prime Factor Structure

Factorization String 2^2 × 3^2 × 13 × 1381

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 1,760,668

Proper Divisor Sum 1,114,360

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #646307 ← → #646309

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

646,308 323,154 161,577 484,732 242,366 121,183 363,550 181,775 545,326 272,663 817,990 408,995 1,226,986 613,493 1,840,480 920,240 460,120 230,060 115,030 57,515 172,546 86,273 258,820 129,410 64,705 194,116 97,058 48,529 145,588 72,794 36,397 109,192 54,596 27,298 13,649 40,948 20,474 10,237 30,712 15,356 7,678 3,839 11,518 5,759 17,278 8,639 25,918 12,959 38,878 19,439 58,318 29,159 87,478 43,739 131,218 65,609 196,828 98,414 49,207 147,622

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