5² × 128621

Prime Factor Structure

Factorization String 5^2 × 128621

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 3,987,282

Proper Divisor Sum 771,757

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #3215479 ← → #3215539

1 5 25 128,621 643,105 3,215,525

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

3,215,525 9,646,576 4,823,288 2,411,644 1,205,822 602,911 1,808,734 904,367 2,713,102 1,356,551 4,069,654 2,034,827 6,104,482 3,052,241 9,156,724 4,578,362 2,289,181 6,867,544 3,433,772 1,716,886 858,443 2,575,330 1,287,665 3,862,996 1,931,498 965,749 2,897,248 1,448,624 724,312 362,156 181,078 90,539 271,618 135,809 407,428 203,714 101,857 305,572 152,786 76,393 229,180 114,590 57,295 171,886 85,943 257,830 128,915 386,746 193,373 580,120 290,060 145,030 72,515 217,546 108,773 326,320 163,160 81,580 40,790 20,395

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