397 × 1663

Prime Factor Structure

Factorization String 397 × 1663

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 662,272

Proper Divisor Sum 2,061

Digit Sum / Digital Root 16 (Root: 7)

Adjacent Primes #660199 ← → #660217

1 397 1,663 660,211

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

660,211 1,980,634 990,317 2,970,952 1,485,476 742,738 371,369 1,114,108 557,054 278,527 835,582 417,791 1,253,374 626,687 1,880,062 940,031 2,820,094 1,410,047 4,230,142 2,115,071 6,345,214 3,172,607 9,517,822 4,758,911 14,276,734 7,138,367 21,415,102 10,707,551 32,122,654 16,061,327 48,183,982 24,091,991 72,275,974 36,137,987 108,413,962 54,206,981 162,620,944 81,310,472 40,655,236 20,327,618 10,163,809 30,491,428 15,245,714 7,622,857 22,868,572 11,434,286 5,717,143 17,151,430 8,575,715 25,727,146 12,863,573 38,590,720 19,295,360 9,647,680 4,823,840 2,411,920 1,205,960 602,980 301,490 150,745

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