9,128,655

3² × 5 × 202859

Starting at 9,128,655, the Collatz iteration reaches 1 after 132 steps. The first transition is 27385966; the starting value is odd with 12 positive divisors.

Prime Factor Structure

Factorization String 3^2 × 5 × 202859

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 15,823,080

Proper Divisor Sum 6,694,425

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #9128653 ← → #9128659

Radix Representation

Decimal	9128655
Binary	100010110100101011001111 (24 bits)
Octal	0o42645317
Hexadecimal	0x8B4ACF

Divisor Catalog (12)

1 3 5 9 15 45 202,859 608,577 1,014,295 1,825,731 3,042,885 9,128,655

Collatz Trajectory (132 steps to reach 1)

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

9,128,655 27,385,966 13,692,983 41,078,950 20,539,475 61,618,426 30,809,213 92,427,640 46,213,820 23,106,910 11,553,455 34,660,366 17,330,183 51,990,550 25,995,275 77,985,826 38,992,913 116,978,740 58,489,370 29,244,685 87,734,056 43,867,028 21,933,514 10,966,757 32,900,272 16,450,136 8,225,068 4,112,534 2,056,267 6,168,802 3,084,401 9,253,204 4,626,602 2,313,301 6,939,904 3,469,952 1,734,976 867,488 433,744 216,872 108,436 54,218 27,109 81,328 40,664 20,332 10,166 5,083 15,250 7,625 22,876 11,438 5,719 17,158 8,579 25,738 12,869 38,608 19,304 9,652

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