9,963,620

2² × 5 × 498181

Starting at 9,963,620, the Collatz iteration reaches 1 after 57 steps. The first transition is 4981810; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 5 × 498181

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 20,923,644

Proper Divisor Sum 10,960,024

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #9963587 ← → #9963641

Radix Representation

Decimal	9963620
Binary	100110000000100001100100 (24 bits)
Octal	0o46004144
Hexadecimal	0x980864

Divisor Catalog (12)

1 2 4 5 10 20 498,181 996,362 1,992,724 2,490,905 4,981,810 9,963,620

Collatz Trajectory (57 steps to reach 1)

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

9,963,620 4,981,810 2,490,905 7,472,716 3,736,358 1,868,179 5,604,538 2,802,269 8,406,808 4,203,404 2,101,702 1,050,851 3,152,554 1,576,277 4,728,832 2,364,416 1,182,208 591,104 295,552 147,776 73,888 36,944 18,472 9,236 4,618 2,309 6,928 3,464 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 10 5 16 8 4 2 1

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