13 × 17 × 631

Prime Factor Structure

Factorization String 13 × 17 × 631

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 159,264

Proper Divisor Sum 19,813

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #139439 ← → #139457

1 13 17 221 631 8,203 10,727 139,451

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

139,451 418,354 209,177 627,532 313,766 156,883 470,650 235,325 705,976 352,988 176,494 88,247 264,742 132,371 397,114 198,557 595,672 297,836 148,918 74,459 223,378 111,689 335,068 167,534 83,767 251,302 125,651 376,954 188,477 565,432 282,716 141,358 70,679 212,038 106,019 318,058 159,029 477,088 238,544 119,272 59,636 29,818 14,909 44,728 22,364 11,182 5,591 16,774 8,387 25,162 12,581 37,744 18,872 9,436 4,718 2,359 7,078 3,539 10,618 5,309

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