λ
Ratio Atlas
Atlas › Integer Profiles › Node 21,031,276
21,031,276
22 × 7 × 691 × 1087
Abundant Even Composite

Prime Factor Structure

Factorization String 2^2 × 7 × 691 × 1087
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 42,162,176
Proper Divisor Sum 21,130,900
Digit Sum / Digital Root 22 (Root: 4)
Adjacent Primes #21031253 ← → #21031277

Radix Representation

Decimal 21031276
Binary 1010000001110100101101100 (25 bits)
Octal 0o120164554
Hexadecimal 0x140E96C

Divisor Catalog (24)

1 2 4 7 14 28 691 1,087 1,382 2,174 2,764 4,348 4,837 7,609 9,674 15,218 19,348 30,436 751,117 1,502,234 3,004,468 5,257,819 10,515,638 21,031,276

Collatz Trajectory (177 steps to reach 1)

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

21,031,276 10,515,638 5,257,819 15,773,458 7,886,729 23,660,188 11,830,094 5,915,047 17,745,142 8,872,571 26,617,714 13,308,857 39,926,572 19,963,286 9,981,643 29,944,930 14,972,465 44,917,396 22,458,698 11,229,349 33,688,048 16,844,024 8,422,012 4,211,006 2,105,503 6,316,510 3,158,255 9,474,766 4,737,383 14,212,150 7,106,075 21,318,226 10,659,113 31,977,340 15,988,670 7,994,335 23,983,006 11,991,503 35,974,510 17,987,255 53,961,766 26,980,883 80,942,650 40,471,325 121,413,976 60,706,988 30,353,494 15,176,747 45,530,242 22,765,121 68,295,364 34,147,682 17,073,841 51,221,524 25,610,762 12,805,381 38,416,144 19,208,072 9,604,036 4,802,018

Active Feeder Network

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

Feeder #6,573,969 Feeder #6,845,105 Feeder #8,750,980 Feeder #906,051 Feeder #1,285,993 Feeder #7,584,379 Feeder #4,761,186 Feeder #626,174
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