2² × 17 × 316339

Prime Factor Structure

Factorization String 2^2 × 17 × 316339

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 39,858,840

Proper Divisor Sum 18,347,788

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #21511031 ← → #21511079

1 2 4 17 34 68 316,339 632,678 1,265,356 5,377,763 10,755,526 21,511,052

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

21,511,052 10,755,526 5,377,763 16,133,290 8,066,645 24,199,936 12,099,968 6,049,984 3,024,992 1,512,496 756,248 378,124 189,062 94,531 283,594 141,797 425,392 212,696 106,348 53,174 26,587 79,762 39,881 119,644 59,822 29,911 89,734 44,867 134,602 67,301 201,904 100,952 50,476 25,238 12,619 37,858 18,929 56,788 28,394 14,197 42,592 21,296 10,648 5,324 2,662 1,331 3,994 1,997 5,992 2,996 1,498 749 2,248 1,124 562 281 844 422 211 634

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