3³ × 37 × 641

Prime Factor Structure

Factorization String 3^3 × 37 × 641

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 975,840

Proper Divisor Sum 335,481

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #640333 ← → #640363

1 3 9 27 37 111 333 641 999 1,923 5,769 17,307 23,717 71,151 213,453 640,359

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

640,359 1,921,078 960,539 2,881,618 1,440,809 4,322,428 2,161,214 1,080,607 3,241,822 1,620,911 4,862,734 2,431,367 7,294,102 3,647,051 10,941,154 5,470,577 16,411,732 8,205,866 4,102,933 12,308,800 6,154,400 3,077,200 1,538,600 769,300 384,650 192,325 576,976 288,488 144,244 72,122 36,061 108,184 54,092 27,046 13,523 40,570 20,285 60,856 30,428 15,214 7,607 22,822 11,411 34,234 17,117 51,352 25,676 12,838 6,419 19,258 9,629 28,888 14,444 7,222 3,611 10,834 5,417 16,252 8,126 4,063

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