3 × 7 × 53 × 577

Prime Factor Structure

Factorization String 3 × 7 × 53 × 577

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 998,784

Proper Divisor Sum 356,583

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #642199 ← → #642211

1 3 7 21 53 159 371 577 1,113 1,731 4,039 12,117 30,581 91,743 214,067 642,201

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

642,201 1,926,604 963,302 481,651 1,444,954 722,477 2,167,432 1,083,716 541,858 270,929 812,788 406,394 203,197 609,592 304,796 152,398 76,199 228,598 114,299 342,898 171,449 514,348 257,174 128,587 385,762 192,881 578,644 289,322 144,661 433,984 216,992 108,496 54,248 27,124 13,562 6,781 20,344 10,172 5,086 2,543 7,630 3,815 11,446 5,723 17,170 8,585 25,756 12,878 6,439 19,318 9,659 28,978 14,489 43,468 21,734 10,867 32,602 16,301 48,904 24,452

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