3 × 7 × 31 × 139

Prime Factor Structure

Factorization String 3 × 7 × 31 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 143,360

Proper Divisor Sum 52,871

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #90481 ← → #90499

1 3 7 21 31 93 139 217 417 651 973 2,919 4,309 12,927 30,163 90,489

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

90,489 271,468 135,734 67,867 203,602 101,801 305,404 152,702 76,351 229,054 114,527 343,582 171,791 515,374 257,687 773,062 386,531 1,159,594 579,797 1,739,392 869,696 434,848 217,424 108,712 54,356 27,178 13,589 40,768 20,384 10,192 5,096 2,548 1,274 637 1,912 956 478 239 718 359 1,078 539 1,618 809 2,428 1,214 607 1,822 911 2,734 1,367 4,102 2,051 6,154 3,077 9,232 4,616 2,308 1,154 577

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