2³ × 257 × 311

Prime Factor Structure

Factorization String 2^3 × 257 × 311

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,207,440

Proper Divisor Sum 568,024

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #639391 ← → #639433

1 2 4 8 257 311 514 622 1,028 1,244 2,056 2,488 79,927 159,854 319,708 639,416

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

639,416 319,708 159,854 79,927 239,782 119,891 359,674 179,837 539,512 269,756 134,878 67,439 202,318 101,159 303,478 151,739 455,218 227,609 682,828 341,414 170,707 512,122 256,061 768,184 384,092 192,046 96,023 288,070 144,035 432,106 216,053 648,160 324,080 162,040 81,020 40,510 20,255 60,766 30,383 91,150 45,575 136,726 68,363 205,090 102,545 307,636 153,818 76,909 230,728 115,364 57,682 28,841 86,524 43,262 21,631 64,894 32,447 97,342 48,671 146,014

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