3² × 7 × 31 × 263

Prime Factor Structure

Factorization String 3^2 × 7 × 31 × 263

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 878,592

Proper Divisor Sum 364,953

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #513631 ← → #513641

1 3 7 9 21 31 63 93 217 263 279 651 789 1,841 1,953 2,367 5,523 8,153 16,569 24,459 57,071 73,377 171,213 513,639

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

513,639 1,540,918 770,459 2,311,378 1,155,689 3,467,068 1,733,534 866,767 2,600,302 1,300,151 3,900,454 1,950,227 5,850,682 2,925,341 8,776,024 4,388,012 2,194,006 1,097,003 3,291,010 1,645,505 4,936,516 2,468,258 1,234,129 3,702,388 1,851,194 925,597 2,776,792 1,388,396 694,198 347,099 1,041,298 520,649 1,561,948 780,974 390,487 1,171,462 585,731 1,757,194 878,597 2,635,792 1,317,896 658,948 329,474 164,737 494,212 247,106 123,553 370,660 185,330 92,665 277,996 138,998 69,499 208,498 104,249 312,748 156,374 78,187 234,562 117,281

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