λ
Sequence Observatory

1,355,896

23 × 23 × 7369
Deficient Even Composite

Starting at 1,355,896, the Collatz iteration reaches 1 after 111 steps. The first transition is 677948; the starting value is even with 16 positive divisors.

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Prime Factor Structure

Factorization String 2^3 × 23 × 7369
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 2,653,200
Proper Divisor Sum 1,297,304
Digit Sum / Digital Root 37 (Root: 1)
Adjacent Primes #1355891 ← → #1355917

Radix Representation

Decimal 1355896
Binary 101001011000001111000 (21 bits)
Octal 0o5130170
Hexadecimal 0x14B078

Divisor Catalog (5 of 16)

1 2 4 8 23

Collatz Trajectory (111 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.

1,355,896 677,948 338,974 169,487 508,462

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