2 × 31 × 53 × 6689

Prime Factor Structure

Factorization String 2 × 31 × 53 × 6689

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 34,680,960

Proper Divisor Sum 12,700,906

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #21980053 ← → #21980117

1 2 31 53 62 106 1,643 3,286 6,689 13,378 207,359 354,517 414,718 709,034 10,990,027 21,980,054

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

21,980,054 10,990,027 32,970,082 16,485,041 49,455,124 24,727,562 12,363,781 37,091,344 18,545,672 9,272,836 4,636,418 2,318,209 6,954,628 3,477,314 1,738,657 5,215,972 2,607,986 1,303,993 3,911,980 1,955,990 977,995 2,933,986 1,466,993 4,400,980 2,200,490 1,100,245 3,300,736 1,650,368 825,184 412,592 206,296 103,148 51,574 25,787 77,362 38,681 116,044 58,022 29,011 87,034 43,517 130,552 65,276 32,638 16,319 48,958 24,479 73,438 36,719 110,158 55,079 165,238 82,619 247,858 123,929 371,788 185,894 92,947 278,842 139,421

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