λ
Match Zalai

1,279,485

32 × 5 × 28433
Deficient Odd Composite

1,279,485 factors as 3^2 × 5 × 28433. Its 12 positive divisors give a proper-divisor sum of 938,367, so this integer is deficient. The Collatz stopping time is 129 steps.

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Prime Factor Structure

Factorization String 3^2 × 5 × 28433
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 2,217,852
Proper Divisor Sum 938,367
Digit Sum / Digital Root 36 (Root: 9)
Adjacent Primes #1279483 ← → #1279493

Radix Representation

Decimal 1279485
Binary 100111000010111111101 (21 bits)
Octal 0o4702775
Hexadecimal 0x1385FD

Divisor Catalog (5 of 12)

1 3 5 9 15

Collatz Trajectory (129 steps to reach 1)

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

Showing the first 5 trajectory entries; the stopping-time total above is unchanged.

1,279,485 3,838,456 1,919,228 959,614 479,807

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