3 × 7 × 2731

Prime Factor Structure

Factorization String 3 × 7 × 2731

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 87,424

Proper Divisor Sum 30,073

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #57349 ← → #57367

1 3 7 21 2,731 8,193 19,117 57,351

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

57,351 172,054 86,027 258,082 129,041 387,124 193,562 96,781 290,344 145,172 72,586 36,293 108,880 54,440 27,220 13,610 6,805 20,416 10,208 5,104 2,552 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911 2,734 1,367 4,102 2,051 6,154 3,077 9,232 4,616 2,308 1,154 577 1,732 866 433 1,300 650 325 976 488 244 122 61

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