λ
Sequence Observatory

210,697

109 × 1933
Deficient Odd Composite

Starting at 210,697, the Collatz iteration reaches 1 after 240 steps. The first transition is 632092; the starting value is odd with 4 positive divisors.

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Prime Factor Structure

Factorization String 109 × 1933
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 212,740
Proper Divisor Sum 2,043
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #210671 ← → #210709

Radix Representation

Decimal 210697
Binary 110011011100001001 (18 bits)
Octal 0o633411
Hexadecimal 0x33709

Divisor Catalog (4)

1 109 1,933 210,697

Collatz Trajectory (240 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.

210,697 632,092 316,046 158,023 474,070

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