λ
Sequence Observatory

770,851

421 × 1831
Deficient Odd Composite

Starting at 770,851, the Collatz iteration reaches 1 after 56 steps. The first transition is 2312554; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 421 × 1831
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 773,104
Proper Divisor Sum 2,253
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #770843 ← → #770863

Radix Representation

Decimal 770851
Binary 10111100001100100011 (20 bits)
Octal 0o2741443
Hexadecimal 0xBC323

Divisor Catalog (4)

Collatz Trajectory (56 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.

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