5² × 855641

Prime Factor Structure

Factorization String 5^2 × 855641

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 26,524,902

Proper Divisor Sum 5,133,877

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #21391021 ← → #21391033

1 5 25 855,641 4,278,205 21,391,025

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

21,391,025 64,173,076 32,086,538 16,043,269 48,129,808 24,064,904 12,032,452 6,016,226 3,008,113 9,024,340 4,512,170 2,256,085 6,768,256 3,384,128 1,692,064 846,032 423,016 211,508 105,754 52,877 158,632 79,316 39,658 19,829 59,488 29,744 14,872 7,436 3,718 1,859 5,578 2,789 8,368 4,184 2,092 1,046 523 1,570 785 2,356 1,178 589 1,768 884 442 221 664 332 166 83 250 125 376 188 94 47 142 71 214 107

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