2 × 10566287

Prime Factor Structure

Factorization String 2 × 10566287

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 31,698,864

Proper Divisor Sum 10,566,290

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #21132571 ← → #21132599

1 2 10,566,287 21,132,574

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

21,132,574 10,566,287 31,698,862 15,849,431 47,548,294 23,774,147 71,322,442 35,661,221 106,983,664 53,491,832 26,745,916 13,372,958 6,686,479 20,059,438 10,029,719 30,089,158 15,044,579 45,133,738 22,566,869 67,700,608 33,850,304 16,925,152 8,462,576 4,231,288 2,115,644 1,057,822 528,911 1,586,734 793,367 2,380,102 1,190,051 3,570,154 1,785,077 5,355,232 2,677,616 1,338,808 669,404 334,702 167,351 502,054 251,027 753,082 376,541 1,129,624 564,812 282,406 141,203 423,610 211,805 635,416 317,708 158,854 79,427 238,282 119,141 357,424 178,712 89,356 44,678 22,339

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