λ
Ratio Atlas
Atlas › Integer Profiles › Node 21,391,839
21,391,839
32 × 7 × 83 × 4091
Deficient Odd Composite

Prime Factor Structure

Factorization String 3^2 × 7 × 83 × 4091
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 35,747,712
Proper Divisor Sum 14,355,873
Digit Sum / Digital Root 36 (Root: 9)
Adjacent Primes #21391837 ← → #21391841

Radix Representation

Decimal 21391839
Binary 1010001100110100111011111 (25 bits)
Octal 0o121464737
Hexadecimal 0x14669DF

Divisor Catalog (24)

1 3 7 9 21 63 83 249 581 747 1,743 4,091 5,229 12,273 28,637 36,819 85,911 257,733 339,553 1,018,659 2,376,871 3,055,977 7,130,613 21,391,839

Collatz Trajectory (120 steps to reach 1)

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

21,391,839 64,175,518 32,087,759 96,263,278 48,131,639 144,394,918 72,197,459 216,592,378 108,296,189 324,888,568 162,444,284 81,222,142 40,611,071 121,833,214 60,916,607 182,749,822 91,374,911 274,124,734 137,062,367 411,187,102 205,593,551 616,780,654 308,390,327 925,170,982 462,585,491 1,387,756,474 693,878,237 2,081,634,712 1,040,817,356 520,408,678 260,204,339 780,613,018 390,306,509 1,170,919,528 585,459,764 292,729,882 146,364,941 439,094,824 219,547,412 109,773,706 54,886,853 164,660,560 82,330,280 41,165,140 20,582,570 10,291,285 30,873,856 15,436,928 7,718,464 3,859,232 1,929,616 964,808 482,404 241,202 120,601 361,804 180,902 90,451 271,354 135,677

Active Feeder Network

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

Feeder #7,737,779 Feeder #685,881 Feeder #2,871,188 Feeder #906,051 Feeder #1,285,993 Feeder #7,584,379 Feeder #4,761,186 Feeder #626,174
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