2³ × 5 × 13 × 157

Prime Factor Structure

Factorization String 2^3 × 5 × 13 × 157

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 199,080

Proper Divisor Sum 117,440

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #81637 ← → #81647

1 2 4 5 8 10 13 20 26 40 52 65 104 130 157 260 314 520 628 785 1,256 1,570 2,041 3,140 4,082 6,280 8,164 10,205 16,328 20,410 40,820 81,640

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

81,640 40,820 20,410 10,205 30,616 15,308 7,654 3,827 11,482 5,741 17,224 8,612 4,306 2,153 6,460 3,230 1,615 4,846 2,423 7,270 3,635 10,906 5,453 16,360 8,180 4,090 2,045 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 11,072 5,536 2,768 1,384 692 346 173 520

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