31 × 421 × 1531

Prime Factor Structure

Factorization String 31 × 421 × 1531

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 20,688,128

Proper Divisor Sum 707,047

Digit Sum / Digital Root 37 (Root: 1)

Adjacent Primes #19981079 ← → #19981109

1 31 421 1,531 13,051 47,461 644,551 19,981,081

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

19,981,081 59,943,244 29,971,622 14,985,811 44,957,434 22,478,717 67,436,152 33,718,076 16,859,038 8,429,519 25,288,558 12,644,279 37,932,838 18,966,419 56,899,258 28,449,629 85,348,888 42,674,444 21,337,222 10,668,611 32,005,834 16,002,917 48,008,752 24,004,376 12,002,188 6,001,094 3,000,547 9,001,642 4,500,821 13,502,464 6,751,232 3,375,616 1,687,808 843,904 421,952 210,976 105,488 52,744 26,372 13,186 6,593 19,780 9,890 4,945 14,836 7,418 3,709 11,128 5,564 2,782 1,391 4,174 2,087 6,262 3,131 9,394 4,697 14,092 7,046 3,523

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