λ
Sequence Observatory

1,328,347

19 × 151 × 463
Deficient Odd Composite

Starting at 1,328,347, the Collatz iteration reaches 1 after 261 steps. The first transition is 3985042; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 19 × 151 × 463
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 1,410,560
Proper Divisor Sum 82,213
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #1328323 ← → #1328351

Radix Representation

Decimal 1328347
Binary 101000100010011011011 (21 bits)
Octal 0o5042333
Hexadecimal 0x1444DB

Divisor Catalog (8)

1 19 151 463 2,869 8,797 69,913 1,328,347

Collatz Trajectory (261 steps to reach 1)

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

1,328,347 3,985,042 1,992,521 5,977,564 2,988,782 1,494,391 4,483,174 2,241,587 6,724,762 3,362,381 10,087,144 5,043,572 2,521,786 1,260,893 3,782,680 1,891,340 945,670 472,835 1,418,506 709,253 2,127,760 1,063,880 531,940 265,970 132,985 398,956 199,478 99,739 299,218 149,609 448,828 224,414 112,207 336,622 168,311 504,934 252,467 757,402 378,701 1,136,104 568,052 284,026 142,013 426,040 213,020 106,510 53,255 159,766 79,883 239,650 119,825 359,476 179,738 89,869 269,608 134,804 67,402 33,701 101,104 50,552

More profiles

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