2² × 7 × 13² × 4421

Prime Factor Structure

Factorization String 2^2 × 7 × 13^2 × 4421

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 45,316,656

Proper Divisor Sum 24,396,484

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #20920157 ← → #20920181

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

20,920,172 10,460,086 5,230,043 15,690,130 7,845,065 23,535,196 11,767,598 5,883,799 17,651,398 8,825,699 26,477,098 13,238,549 39,715,648 19,857,824 9,928,912 4,964,456 2,482,228 1,241,114 620,557 1,861,672 930,836 465,418 232,709 698,128 349,064 174,532 87,266 43,633 130,900 65,450 32,725 98,176 49,088 24,544 12,272 6,136 3,068 1,534 767 2,302 1,151 3,454 1,727 5,182 2,591 7,774 3,887 11,662 5,831 17,494 8,747 26,242 13,121 39,364 19,682 9,841 29,524 14,762 7,381 22,144

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