397 × 1613

Prime Factor Structure

Factorization String 397 × 1613

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 642,372

Proper Divisor Sum 2,011

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #640333 ← → #640363

1 397 1,613 640,361

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

640,361 1,921,084 960,542 480,271 1,440,814 720,407 2,161,222 1,080,611 3,241,834 1,620,917 4,862,752 2,431,376 1,215,688 607,844 303,922 151,961 455,884 227,942 113,971 341,914 170,957 512,872 256,436 128,218 64,109 192,328 96,164 48,082 24,041 72,124 36,062 18,031 54,094 27,047 81,142 40,571 121,714 60,857 182,572 91,286 45,643 136,930 68,465 205,396 102,698 51,349 154,048 77,024 38,512 19,256 9,628 4,814 2,407 7,222 3,611 10,834 5,417 16,252 8,126 4,063

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