67 × 313

Prime Factor Structure

Factorization String 67 × 313

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 21,352

Proper Divisor Sum 381

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #20963 ← → #20981

1 67 313 20,971

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

20,971 62,914 31,457 94,372 47,186 23,593 70,780 35,390 17,695 53,086 26,543 79,630 39,815 119,446 59,723 179,170 89,585 268,756 134,378 67,189 201,568 100,784 50,392 25,196 12,598 6,299 18,898 9,449 28,348 14,174 7,087 21,262 10,631 31,894 15,947 47,842 23,921 71,764 35,882 17,941 53,824 26,912 13,456 6,728 3,364 1,682 841 2,524 1,262 631 1,894 947 2,842 1,421 4,264 2,132 1,066 533 1,600 800

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