3 × 7 × 19 × 3061

Prime Factor Structure

Factorization String 3 × 7 × 19 × 3061

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,959,680

Proper Divisor Sum 738,341

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #1221299 ← → #1221373

1 3 7 19 21 57 133 399 3,061 9,183 21,427 58,159 64,281 174,477 407,113 1,221,339

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

1,221,339 3,664,018 1,832,009 5,496,028 2,748,014 1,374,007 4,122,022 2,061,011 6,183,034 3,091,517 9,274,552 4,637,276 2,318,638 1,159,319 3,477,958 1,738,979 5,216,938 2,608,469 7,825,408 3,912,704 1,956,352 978,176 489,088 244,544 122,272 61,136 30,568 15,284 7,642 3,821 11,464 5,732 2,866 1,433 4,300 2,150 1,075 3,226 1,613 4,840 2,420 1,210 605 1,816 908 454 227 682 341 1,024 512 256 128 64 32 16 8 4 2 1

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