3 × 43 × 79 × 1721

Prime Factor Structure

Factorization String 3 × 43 × 79 × 1721

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 24,245,760

Proper Divisor Sum 6,707,049

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #17538709 ← → #17538721

1 3 43 79 129 237 1,721 3,397 5,163 10,191 74,003 135,959 222,009 407,877 5,846,237 17,538,711

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

17,538,711 52,616,134 26,308,067 78,924,202 39,462,101 118,386,304 59,193,152 29,596,576 14,798,288 7,399,144 3,699,572 1,849,786 924,893 2,774,680 1,387,340 693,670 346,835 1,040,506 520,253 1,560,760 780,380 390,190 195,095 585,286 292,643 877,930 438,965 1,316,896 658,448 329,224 164,612 82,306 41,153 123,460 61,730 30,865 92,596 46,298 23,149 69,448 34,724 17,362 8,681 26,044 13,022 6,511 19,534 9,767 29,302 14,651 43,954 21,977 65,932 32,966 16,483 49,450 24,725 74,176 37,088 18,544

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