13 × 67 × 251

Prime Factor Structure

Factorization String 13 × 67 × 251

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 239,904

Proper Divisor Sum 21,283

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #218611 ← → #218623

1 13 67 251 871 3,263 16,817 218,621

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

218,621 655,864 327,932 163,966 81,983 245,950 122,975 368,926 184,463 553,390 276,695 830,086 415,043 1,245,130 622,565 1,867,696 933,848 466,924 233,462 116,731 350,194 175,097 525,292 262,646 131,323 393,970 196,985 590,956 295,478 147,739 443,218 221,609 664,828 332,414 166,207 498,622 249,311 747,934 373,967 1,121,902 560,951 1,682,854 841,427 2,524,282 1,262,141 3,786,424 1,893,212 946,606 473,303 1,419,910 709,955 2,129,866 1,064,933 3,194,800 1,597,400 798,700 399,350 199,675 599,026 299,513

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