2² × 639671

Prime Factor Structure

Factorization String 2^2 × 639671

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 4,477,704

Proper Divisor Sum 1,919,020

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #2558683 ← → #2558701

1 2 4 639,671 1,279,342 2,558,684

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

2,558,684 1,279,342 639,671 1,919,014 959,507 2,878,522 1,439,261 4,317,784 2,158,892 1,079,446 539,723 1,619,170 809,585 2,428,756 1,214,378 607,189 1,821,568 910,784 455,392 227,696 113,848 56,924 28,462 14,231 42,694 21,347 64,042 32,021 96,064 48,032 24,016 12,008 6,004 3,002 1,501 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

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