13 × 131 × 151

Prime Factor Structure

Factorization String 13 × 131 × 151

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 280,896

Proper Divisor Sum 23,743

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #257141 ← → #257161

1 13 131 151 1,703 1,963 19,781 257,153

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

257,153 771,460 385,730 192,865 578,596 289,298 144,649 433,948 216,974 108,487 325,462 162,731 488,194 244,097 732,292 366,146 183,073 549,220 274,610 137,305 411,916 205,958 102,979 308,938 154,469 463,408 231,704 115,852 57,926 28,963 86,890 43,445 130,336 65,168 32,584 16,292 8,146 4,073 12,220 6,110 3,055 9,166 4,583 13,750 6,875 20,626 10,313 30,940 15,470 7,735 23,206 11,603 34,810 17,405 52,216 26,108 13,054 6,527 19,582 9,791

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