1,138,666

2 × 89 × 6397

Starting at 1,138,666, the Collatz iteration reaches 1 after 129 steps. The first transition is 569333; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 89 × 6397

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,727,460

Proper Divisor Sum 588,794

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #1138649 ← → #1138667

Radix Representation

Decimal	1138666
Binary	100010101111111101010 (21 bits)
Octal	0o4257752
Hexadecimal	0x115FEA

Divisor Catalog (8)

1 2 89 178 6,397 12,794 569,333 1,138,666

Collatz Trajectory (129 steps to reach 1)

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

1,138,666 569,333 1,708,000 854,000 427,000 213,500 106,750 53,375 160,126 80,063 240,190 120,095 360,286 180,143 540,430 270,215 810,646 405,323 1,215,970 607,985 1,823,956 911,978 455,989 1,367,968 683,984 341,992 170,996 85,498 42,749 128,248 64,124 32,062 16,031 48,094 24,047 72,142 36,071 108,214 54,107 162,322 81,161 243,484 121,742 60,871 182,614 91,307 273,922 136,961 410,884 205,442 102,721 308,164 154,082 77,041 231,124 115,562 57,781 173,344 86,672 43,336

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