4,168,261

1279 × 3259

Starting at 4,168,261, the Collatz iteration reaches 1 after 110 steps. The first transition is 12504784; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 1279 × 3259

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,172,800

Proper Divisor Sum 4,539

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #4168259 ← → #4168273

Radix Representation

Decimal	4168261
Binary	1111111001101001000101 (22 bits)
Octal	0o17715105
Hexadecimal	0x3F9A45

Divisor Catalog (4)

1 1,279 3,259 4,168,261

Collatz Trajectory (110 steps to reach 1)

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

4,168,261 12,504,784 6,252,392 3,126,196 1,563,098 781,549 2,344,648 1,172,324 586,162 293,081 879,244 439,622 219,811 659,434 329,717 989,152 494,576 247,288 123,644 61,822 30,911 92,734 46,367 139,102 69,551 208,654 104,327 312,982 156,491 469,474 234,737 704,212 352,106 176,053 528,160 264,080 132,040 66,020 33,010 16,505 49,516 24,758 12,379 37,138 18,569 55,708 27,854 13,927 41,782 20,891 62,674 31,337 94,012 47,006 23,503 70,510 35,255 105,766 52,883 158,650

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