31 × 257 × 821

Prime Factor Structure

Factorization String 31 × 257 × 821

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 6,786,432

Proper Divisor Sum 245,525

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #6540899 ← → #6540913

1 31 257 821 7,967 25,451 210,997 6,540,907

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

6,540,907 19,622,722 9,811,361 29,434,084 14,717,042 7,358,521 22,075,564 11,037,782 5,518,891 16,556,674 8,278,337 24,835,012 12,417,506 6,208,753 18,626,260 9,313,130 4,656,565 13,969,696 6,984,848 3,492,424 1,746,212 873,106 436,553 1,309,660 654,830 327,415 982,246 491,123 1,473,370 736,685 2,210,056 1,105,028 552,514 276,257 828,772 414,386 207,193 621,580 310,790 155,395 466,186 233,093 699,280 349,640 174,820 87,410 43,705 131,116 65,558 32,779 98,338 49,169 147,508 73,754 36,877 110,632 55,316 27,658 13,829 41,488

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