2,660,888

2³ × 332611

Starting at 2,660,888, the Collatz iteration reaches 1 after 125 steps. The first transition is 1330444; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2^3 × 332611

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 4,989,180

Proper Divisor Sum 2,328,292

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #2660887 ← → #2660899

Radix Representation

Decimal	2660888
Binary	1010001001101000011000 (22 bits)
Octal	0o12115030
Hexadecimal	0x289A18

Divisor Catalog (8)

1 2 4 8 332,611 665,222 1,330,444 2,660,888

Collatz Trajectory (125 steps to reach 1)

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

2,660,888 1,330,444 665,222 332,611 997,834 498,917 1,496,752 748,376 374,188 187,094 93,547 280,642 140,321 420,964 210,482 105,241 315,724 157,862 78,931 236,794 118,397 355,192 177,596 88,798 44,399 133,198 66,599 199,798 99,899 299,698 149,849 449,548 224,774 112,387 337,162 168,581 505,744 252,872 126,436 63,218 31,609 94,828 47,414 23,707 71,122 35,561 106,684 53,342 26,671 80,014 40,007 120,022 60,011 180,034 90,017 270,052 135,026 67,513 202,540 101,270

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