21393521

Prime Factor Structure

Factorization String 21393521

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 21,393,522

Proper Divisor Sum 1

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #21393481 ← → #21393551

1 21,393,521

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

21,393,521 64,180,564 32,090,282 16,045,141 48,135,424 24,067,712 12,033,856 6,016,928 3,008,464 1,504,232 752,116 376,058 188,029 564,088 282,044 141,022 70,511 211,534 105,767 317,302 158,651 475,954 237,977 713,932 356,966 178,483 535,450 267,725 803,176 401,588 200,794 100,397 301,192 150,596 75,298 37,649 112,948 56,474 28,237 84,712 42,356 21,178 10,589 31,768 15,884 7,942 3,971 11,914 5,957 17,872 8,936 4,468 2,234 1,117 3,352 1,676 838 419 1,258 629

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