661 × 6691

Prime Factor Structure

Factorization String 661 × 6691

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,430,104

Proper Divisor Sum 7,353

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #4422749 ← → #4422757

1 661 6,691 4,422,751

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

4,422,751 13,268,254 6,634,127 19,902,382 9,951,191 29,853,574 14,926,787 44,780,362 22,390,181 67,170,544 33,585,272 16,792,636 8,396,318 4,198,159 12,594,478 6,297,239 18,891,718 9,445,859 28,337,578 14,168,789 42,506,368 21,253,184 10,626,592 5,313,296 2,656,648 1,328,324 664,162 332,081 996,244 498,122 249,061 747,184 373,592 186,796 93,398 46,699 140,098 70,049 210,148 105,074 52,537 157,612 78,806 39,403 118,210 59,105 177,316 88,658 44,329 132,988 66,494 33,247 99,742 49,871 149,614 74,807 224,422 112,211 336,634 168,317

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