1,805,617

11 × 164147

Starting at 1,805,617, the Collatz iteration reaches 1 after 96 steps. The first transition is 5416852; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 11 × 164147

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 1,969,776

Proper Divisor Sum 164,159

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #1805603 ← → #1805633

Radix Representation

Decimal	1805617
Binary	110111000110100110001 (21 bits)
Octal	0o6706461
Hexadecimal	0x1B8D31

Divisor Catalog (4)

1 11 164,147 1,805,617

Collatz Trajectory (96 steps to reach 1)

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

1,805,617 5,416,852 2,708,426 1,354,213 4,062,640 2,031,320 1,015,660 507,830 253,915 761,746 380,873 1,142,620 571,310 285,655 856,966 428,483 1,285,450 642,725 1,928,176 964,088 482,044 241,022 120,511 361,534 180,767 542,302 271,151 813,454 406,727 1,220,182 610,091 1,830,274 915,137 2,745,412 1,372,706 686,353 2,059,060 1,029,530 514,765 1,544,296 772,148 386,074 193,037 579,112 289,556 144,778 72,389 217,168 108,584 54,292 27,146 13,573 40,720 20,360 10,180 5,090 2,545 7,636 3,818 1,909

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