13 × 23 × 2141

Prime Factor Structure

Factorization String 13 × 23 × 2141

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 719,712

Proper Divisor Sum 79,553

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #640153 ← → #640163

1 13 23 299 2,141 27,833 49,243 640,159

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

640,159 1,920,478 960,239 2,880,718 1,440,359 4,321,078 2,160,539 6,481,618 3,240,809 9,722,428 4,861,214 2,430,607 7,291,822 3,645,911 10,937,734 5,468,867 16,406,602 8,203,301 24,609,904 12,304,952 6,152,476 3,076,238 1,538,119 4,614,358 2,307,179 6,921,538 3,460,769 10,382,308 5,191,154 2,595,577 7,786,732 3,893,366 1,946,683 5,840,050 2,920,025 8,760,076 4,380,038 2,190,019 6,570,058 3,285,029 9,855,088 4,927,544 2,463,772 1,231,886 615,943 1,847,830 923,915 2,771,746 1,385,873 4,157,620 2,078,810 1,039,405 3,118,216 1,559,108 779,554 389,777 1,169,332 584,666 292,333 877,000

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