3² × 31 × 2293

Prime Factor Structure

Factorization String 3^2 × 31 × 2293

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 954,304

Proper Divisor Sum 314,557

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #639739 ← → #639757

1 3 9 31 93 279 2,293 6,879 20,637 71,083 213,249 639,747

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

639,747 1,919,242 959,621 2,878,864 1,439,432 719,716 359,858 179,929 539,788 269,894 134,947 404,842 202,421 607,264 303,632 151,816 75,908 37,954 18,977 56,932 28,466 14,233 42,700 21,350 10,675 32,026 16,013 48,040 24,020 12,010 6,005 18,016 9,008 4,504 2,252 1,126 563 1,690 845 2,536 1,268 634 317 952 476 238 119 358 179 538 269 808 404 202 101 304 152 76 38 19

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