2² × 7 × 409 × 1847

Prime Factor Structure

Factorization String 2^2 × 7 × 409 × 1847

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 42,430,080

Proper Divisor Sum 21,278,236

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #21151813 ← → #21151873

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

21,151,844 10,575,922 5,287,961 15,863,884 7,931,942 3,965,971 11,897,914 5,948,957 17,846,872 8,923,436 4,461,718 2,230,859 6,692,578 3,346,289 10,038,868 5,019,434 2,509,717 7,529,152 3,764,576 1,882,288 941,144 470,572 235,286 117,643 352,930 176,465 529,396 264,698 132,349 397,048 198,524 99,262 49,631 148,894 74,447 223,342 111,671 335,014 167,507 502,522 251,261 753,784 376,892 188,446 94,223 282,670 141,335 424,006 212,003 636,010 318,005 954,016 477,008 238,504 119,252 59,626 29,813 89,440 44,720 22,360

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