821 × 22157

Prime Factor Structure

Factorization String 821 × 22157

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 18,213,876

Proper Divisor Sum 22,979

Digit Sum / Digital Root 43 (Root: 7)

Adjacent Primes #18190883 ← → #18190903

1 821 22,157 18,190,897

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

18,190,897 54,572,692 27,286,346 13,643,173 40,929,520 20,464,760 10,232,380 5,116,190 2,558,095 7,674,286 3,837,143 11,511,430 5,755,715 17,267,146 8,633,573 25,900,720 12,950,360 6,475,180 3,237,590 1,618,795 4,856,386 2,428,193 7,284,580 3,642,290 1,821,145 5,463,436 2,731,718 1,365,859 4,097,578 2,048,789 6,146,368 3,073,184 1,536,592 768,296 384,148 192,074 96,037 288,112 144,056 72,028 36,014 18,007 54,022 27,011 81,034 40,517 121,552 60,776 30,388 15,194 7,597 22,792 11,396 5,698 2,849 8,548 4,274 2,137 6,412 3,206

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