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655,216

24 × 31 × 1321
Abundant Even Composite

Prime Factor Structure

Factorization String 2^4 × 31 × 1321
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 20
Divisor Sum (σ) 1,311,424
Proper Divisor Sum 656,208
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #655211 ← → #655219

Radix Representation

Decimal 655216
Binary 10011111111101110000 (20 bits)
Octal 0o2377560
Hexadecimal 0x9FF70

Divisor Catalog (20)

1 2 4 8 16 31 62 124 248 496 1,321 2,642 5,284 10,568 21,136 40,951 81,902 163,804 327,608 655,216

Collatz Trajectory (66 steps to reach 1)

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

655,216 327,608 163,804 81,902 40,951 122,854 61,427 184,282 92,141 276,424 138,212 69,106 34,553 103,660 51,830 25,915 77,746 38,873 116,620 58,310 29,155 87,466 43,733 131,200 65,600 32,800 16,400 8,200 4,100 2,050 1,025 3,076 1,538 769 2,308 1,154 577 1,732 866 433 1,300 650 325 976 488 244 122 61 184 92 46 23 70 35 106 53 160 80 40 20

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