640477

Prime Factor Structure

Factorization String 640477

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 640,478

Proper Divisor Sum 1

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #640463 ← → #640483

1 640,477

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

640,477 1,921,432 960,716 480,358 240,179 720,538 360,269 1,080,808 540,404 270,202 135,101 405,304 202,652 101,326 50,663 151,990 75,995 227,986 113,993 341,980 170,990 85,495 256,486 128,243 384,730 192,365 577,096 288,548 144,274 72,137 216,412 108,206 54,103 162,310 81,155 243,466 121,733 365,200 182,600 91,300 45,650 22,825 68,476 34,238 17,119 51,358 25,679 77,038 38,519 115,558 57,779 173,338 86,669 260,008 130,004 65,002 32,501 97,504 48,752 24,376

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