13 × 20639

Prime Factor Structure

Factorization String 13 × 20639

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 288,960

Proper Divisor Sum 20,653

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #268297 ← → #268343

1 13 20,639 268,307

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

268,307 804,922 402,461 1,207,384 603,692 301,846 150,923 452,770 226,385 679,156 339,578 169,789 509,368 254,684 127,342 63,671 191,014 95,507 286,522 143,261 429,784 214,892 107,446 53,723 161,170 80,585 241,756 120,878 60,439 181,318 90,659 271,978 135,989 407,968 203,984 101,992 50,996 25,498 12,749 38,248 19,124 9,562 4,781 14,344 7,172 3,586 1,793 5,380 2,690 1,345 4,036 2,018 1,009 3,028 1,514 757 2,272 1,136 568 284

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