13 × 19 × 71 × 139

Prime Factor Structure

Factorization String 13 × 19 × 71 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,822,400

Proper Divisor Sum 384,757

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #2437639 ← → #2437657

1 13 19 71 139 247 923 1,349 1,807 2,641 9,869 17,537 34,333 128,297 187,511 2,437,643

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

2,437,643 7,312,930 3,656,465 10,969,396 5,484,698 2,742,349 8,227,048 4,113,524 2,056,762 1,028,381 3,085,144 1,542,572 771,286 385,643 1,156,930 578,465 1,735,396 867,698 433,849 1,301,548 650,774 325,387 976,162 488,081 1,464,244 732,122 366,061 1,098,184 549,092 274,546 137,273 411,820 205,910 102,955 308,866 154,433 463,300 231,650 115,825 347,476 173,738 86,869 260,608 130,304 65,152 32,576 16,288 8,144 4,072 2,036 1,018 509 1,528 764 382 191 574 287 862 431

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