421 × 821

Prime Factor Structure

Factorization String 421 × 821

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 346,884

Proper Divisor Sum 1,243

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #345637 ← → #345643

1 421 821 345,641

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

345,641 1,036,924 518,462 259,231 777,694 388,847 1,166,542 583,271 1,749,814 874,907 2,624,722 1,312,361 3,937,084 1,968,542 984,271 2,952,814 1,476,407 4,429,222 2,214,611 6,643,834 3,321,917 9,965,752 4,982,876 2,491,438 1,245,719 3,737,158 1,868,579 5,605,738 2,802,869 8,408,608 4,204,304 2,102,152 1,051,076 525,538 262,769 788,308 394,154 197,077 591,232 295,616 147,808 73,904 36,952 18,476 9,238 4,619 13,858 6,929 20,788 10,394 5,197 15,592 7,796 3,898 1,949 5,848 2,924 1,462 731 2,194

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