λ
Sequence Observatory

1,358,942

2 × 13 × 52267
Deficient Even Composite

Starting at 1,358,942, the Collatz iteration reaches 1 after 142 steps. The first transition is 679471; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 13 × 52267
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 2,195,256
Proper Divisor Sum 836,314
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #1358939 ← → #1358953

Radix Representation

Decimal 1358942
Binary 101001011110001011110 (21 bits)
Octal 0o5136136
Hexadecimal 0x14BC5E

Divisor Catalog (8)

Collatz Trajectory (142 steps to reach 1)

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

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