λ
Ratio Atlas
Atlas › Integer Profiles › Node 21,021,983
21,021,983
1663 × 12641
Deficient Odd Composite

Prime Factor Structure

Factorization String 1663 × 12641
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 21,036,288
Proper Divisor Sum 14,305
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #21021953 ← → #21021989

Radix Representation

Decimal 21021983
Binary 1010000001100010100011111 (25 bits)
Octal 0o120142437
Hexadecimal 0x140C51F

Divisor Catalog (4)

1 1,663 12,641 21,021,983

Collatz Trajectory (151 steps to reach 1)

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

21,021,983 63,065,950 31,532,975 94,598,926 47,299,463 141,898,390 70,949,195 212,847,586 106,423,793 319,271,380 159,635,690 79,817,845 239,453,536 119,726,768 59,863,384 29,931,692 14,965,846 7,482,923 22,448,770 11,224,385 33,673,156 16,836,578 8,418,289 25,254,868 12,627,434 6,313,717 18,941,152 9,470,576 4,735,288 2,367,644 1,183,822 591,911 1,775,734 887,867 2,663,602 1,331,801 3,995,404 1,997,702 998,851 2,996,554 1,498,277 4,494,832 2,247,416 1,123,708 561,854 280,927 842,782 421,391 1,264,174 632,087 1,896,262 948,131 2,844,394 1,422,197 4,266,592 2,133,296 1,066,648 533,324 266,662 133,331

Active Feeder Network

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

Feeder #3,913,373 Feeder #8,365,252 Feeder #6,970,568 Feeder #906,051 Feeder #1,285,993 Feeder #7,584,379 Feeder #4,761,186 Feeder #626,174
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