2,789,618

2 × 13 × 19 × 5647

Starting at 2,789,618, the Collatz iteration reaches 1 after 169 steps. The first transition is 1394809; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 13 × 19 × 5647

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 4,744,320

Proper Divisor Sum 1,954,702

Digit Sum / Digital Root 41 (Root: 5)

Adjacent Primes #2789617 ← → #2789621

Radix Representation

Decimal	2789618
Binary	1010101001000011110010 (22 bits)
Octal	0o12510362
Hexadecimal	0x2A90F2

Divisor Catalog (16)

1 2 13 19 26 38 247 494 5,647 11,294 73,411 107,293 146,822 214,586 1,394,809 2,789,618

Collatz Trajectory (169 steps to reach 1)

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

2,789,618 1,394,809 4,184,428 2,092,214 1,046,107 3,138,322 1,569,161 4,707,484 2,353,742 1,176,871 3,530,614 1,765,307 5,295,922 2,647,961 7,943,884 3,971,942 1,985,971 5,957,914 2,978,957 8,936,872 4,468,436 2,234,218 1,117,109 3,351,328 1,675,664 837,832 418,916 209,458 104,729 314,188 157,094 78,547 235,642 117,821 353,464 176,732 88,366 44,183 132,550 66,275 198,826 99,413 298,240 149,120 74,560 37,280 18,640 9,320 4,660 2,330 1,165 3,496 1,748 874 437 1,312 656 328 164 82

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