1,680,682

2 × 840341

Starting at 1,680,682, the Collatz iteration reaches 1 after 114 steps. The first transition is 840341; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 840341

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,521,026

Proper Divisor Sum 840,344

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #1680659 ← → #1680689

Radix Representation

Decimal	1680682
Binary	110011010010100101010 (21 bits)
Octal	0o6322452
Hexadecimal	0x19A52A

Divisor Catalog (4)

1 2 840,341 1,680,682

Collatz Trajectory (114 steps to reach 1)

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

1,680,682 840,341 2,521,024 1,260,512 630,256 315,128 157,564 78,782 39,391 118,174 59,087 177,262 88,631 265,894 132,947 398,842 199,421 598,264 299,132 149,566 74,783 224,350 112,175 336,526 168,263 504,790 252,395 757,186 378,593 1,135,780 567,890 283,945 851,836 425,918 212,959 638,878 319,439 958,318 479,159 1,437,478 718,739 2,156,218 1,078,109 3,234,328 1,617,164 808,582 404,291 1,212,874 606,437 1,819,312 909,656 454,828 227,414 113,707 341,122 170,561 511,684 255,842 127,921 383,764

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