λ
Sequence Observatory

1,143,368

23 × 131 × 1091
Deficient Even Composite

Starting at 1,143,368, the Collatz iteration reaches 1 after 103 steps. The first transition is 571684; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2^3 × 131 × 1091
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 2,162,160
Proper Divisor Sum 1,018,792
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #1143347 ← → #1143371

Radix Representation

Decimal 1143368
Binary 100010111001001001000 (21 bits)
Octal 0o4271110
Hexadecimal 0x117248

Divisor Catalog (16)

1 2 4 8 131 262 524 1,048 1,091 2,182 4,364 8,728 142,921 285,842 571,684 1,143,368

Collatz Trajectory (103 steps to reach 1)

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

1,143,368 571,684 285,842 142,921 428,764 214,382 107,191 321,574 160,787 482,362 241,181 723,544 361,772 180,886 90,443 271,330 135,665 406,996 203,498 101,749 305,248 152,624 76,312 38,156 19,078 9,539 28,618 14,309 42,928 21,464 10,732 5,366 2,683 8,050 4,025 12,076 6,038 3,019 9,058 4,529 13,588 6,794 3,397 10,192 5,096 2,548 1,274 637 1,912 956 478 239 718 359 1,078 539 1,618 809 2,428 1,214

More profiles

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