3 × 7 × 13 × 157 × 491

Prime Factor Structure

Factorization String 3 × 7 × 13 × 157 × 491

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 34,825,728

Proper Divisor Sum 13,780,977

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #21044743 ← → #21044773

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

21,044,751 63,134,254 31,567,127 94,701,382 47,350,691 142,052,074 71,026,037 213,078,112 106,539,056 53,269,528 26,634,764 13,317,382 6,658,691 19,976,074 9,988,037 29,964,112 14,982,056 7,491,028 3,745,514 1,872,757 5,618,272 2,809,136 1,404,568 702,284 351,142 175,571 526,714 263,357 790,072 395,036 197,518 98,759 296,278 148,139 444,418 222,209 666,628 333,314 166,657 499,972 249,986 124,993 374,980 187,490 93,745 281,236 140,618 70,309 210,928 105,464 52,732 26,366 13,183 39,550 19,775 59,326 29,663 88,990 44,495 133,486

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