5 × 641 × 6577

Prime Factor Structure

Factorization String 5 × 641 × 6577

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 25,338,456

Proper Divisor Sum 4,259,171

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #21079271 ← → #21079297

1 5 641 3,205 6,577 32,885 4,215,857 21,079,285

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

21,079,285 63,237,856 31,618,928 15,809,464 7,904,732 3,952,366 1,976,183 5,928,550 2,964,275 8,892,826 4,446,413 13,339,240 6,669,620 3,334,810 1,667,405 5,002,216 2,501,108 1,250,554 625,277 1,875,832 937,916 468,958 234,479 703,438 351,719 1,055,158 527,579 1,582,738 791,369 2,374,108 1,187,054 593,527 1,780,582 890,291 2,670,874 1,335,437 4,006,312 2,003,156 1,001,578 500,789 1,502,368 751,184 375,592 187,796 93,898 46,949 140,848 70,424 35,212 17,606 8,803 26,410 13,205 39,616 19,808 9,904 4,952 2,476 1,238 619

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