2 × 3 × 5 × 131 × 163

Prime Factor Structure

Factorization String 2 × 3 × 5 × 131 × 163

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 1,558,656

Proper Divisor Sum 918,066

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #640589 ← → #640613

1 2 3 5 6 10 15 30 131 163 262 326 393 489 655 786 815 978 1,310 1,630 1,965 2,445 3,930 4,890 21,353 42,706 64,059 106,765 128,118 213,530 320,295 640,590

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

640,590 320,295 960,886 480,443 1,441,330 720,665 2,161,996 1,080,998 540,499 1,621,498 810,749 2,432,248 1,216,124 608,062 304,031 912,094 456,047 1,368,142 684,071 2,052,214 1,026,107 3,078,322 1,539,161 4,617,484 2,308,742 1,154,371 3,463,114 1,731,557 5,194,672 2,597,336 1,298,668 649,334 324,667 974,002 487,001 1,461,004 730,502 365,251 1,095,754 547,877 1,643,632 821,816 410,908 205,454 102,727 308,182 154,091 462,274 231,137 693,412 346,706 173,353 520,060 260,030 130,015 390,046 195,023 585,070 292,535 877,606

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