9,555,556

2² × 19 × 125731

Starting at 9,555,556, the Collatz iteration reaches 1 after 101 steps. The first transition is 4777778; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 19 × 125731

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 17,602,480

Proper Divisor Sum 8,046,924

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #9555551 ← → #9555569

Radix Representation

Decimal	9555556
Binary	100100011100111001100100 (24 bits)
Octal	0o44347144
Hexadecimal	0x91CE64

Divisor Catalog (12)

1 2 4 19 38 76 125,731 251,462 502,924 2,388,889 4,777,778 9,555,556

Collatz Trajectory (101 steps to reach 1)

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

9,555,556 4,777,778 2,388,889 7,166,668 3,583,334 1,791,667 5,375,002 2,687,501 8,062,504 4,031,252 2,015,626 1,007,813 3,023,440 1,511,720 755,860 377,930 188,965 566,896 283,448 141,724 70,862 35,431 106,294 53,147 159,442 79,721 239,164 119,582 59,791 179,374 89,687 269,062 134,531 403,594 201,797 605,392 302,696 151,348 75,674 37,837 113,512 56,756 28,378 14,189 42,568 21,284 10,642 5,321 15,964 7,982 3,991 11,974 5,987 17,962 8,981 26,944 13,472 6,736 3,368 1,684

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