257 × 21221

Prime Factor Structure

Factorization String 257 × 21221

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 5,475,276

Proper Divisor Sum 21,479

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #5453771 ← → #5453801

1 257 21,221 5,453,797

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

5,453,797 16,361,392 8,180,696 4,090,348 2,045,174 1,022,587 3,067,762 1,533,881 4,601,644 2,300,822 1,150,411 3,451,234 1,725,617 5,176,852 2,588,426 1,294,213 3,882,640 1,941,320 970,660 485,330 242,665 727,996 363,998 181,999 545,998 272,999 818,998 409,499 1,228,498 614,249 1,842,748 921,374 460,687 1,382,062 691,031 2,073,094 1,036,547 3,109,642 1,554,821 4,664,464 2,332,232 1,166,116 583,058 291,529 874,588 437,294 218,647 655,942 327,971 983,914 491,957 1,475,872 737,936 368,968 184,484 92,242 46,121 138,364 69,182 34,591

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