3,963,901

151 × 26251

Starting at 3,963,901, the Collatz iteration reaches 1 after 291 steps. The first transition is 11891704; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 151 × 26251

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 3,990,304

Proper Divisor Sum 26,403

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #3963899 ← → #3963931

Radix Representation

Decimal	3963901
Binary	1111000111101111111101 (22 bits)
Octal	0o17075775
Hexadecimal	0x3C7BFD

Divisor Catalog (4)

1 151 26,251 3,963,901

Collatz Trajectory (291 steps to reach 1)

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

3,963,901 11,891,704 5,945,852 2,972,926 1,486,463 4,459,390 2,229,695 6,689,086 3,344,543 10,033,630 5,016,815 15,050,446 7,525,223 22,575,670 11,287,835 33,863,506 16,931,753 50,795,260 25,397,630 12,698,815 38,096,446 19,048,223 57,144,670 28,572,335 85,717,006 42,858,503 128,575,510 64,287,755 192,863,266 96,431,633 289,294,900 144,647,450 72,323,725 216,971,176 108,485,588 54,242,794 27,121,397 81,364,192 40,682,096 20,341,048 10,170,524 5,085,262 2,542,631 7,627,894 3,813,947 11,441,842 5,720,921 17,162,764 8,581,382 4,290,691 12,872,074 6,436,037 19,308,112 9,654,056 4,827,028 2,413,514 1,206,757 3,620,272 1,810,136 905,068

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