2 × 19 × 137 × 157

Prime Factor Structure

Factorization String 2 × 19 × 137 × 157

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,308,240

Proper Divisor Sum 490,898

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #817337 ← → #817357

1 2 19 38 137 157 274 314 2,603 2,983 5,206 5,966 21,509 43,018 408,671 817,342

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

817,342 408,671 1,226,014 613,007 1,839,022 919,511 2,758,534 1,379,267 4,137,802 2,068,901 6,206,704 3,103,352 1,551,676 775,838 387,919 1,163,758 581,879 1,745,638 872,819 2,618,458 1,309,229 3,927,688 1,963,844 981,922 490,961 1,472,884 736,442 368,221 1,104,664 552,332 276,166 138,083 414,250 207,125 621,376 310,688 155,344 77,672 38,836 19,418 9,709 29,128 14,564 7,282 3,641 10,924 5,462 2,731 8,194 4,097 12,292 6,146 3,073 9,220 4,610 2,305 6,916 3,458 1,729 5,188

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