λ
Sequence Observatory

411,315

3 × 5 × 17 × 1613
Deficient Odd Composite

Starting at 411,315, the Collatz iteration reaches 1 after 130 steps. The first transition is 1233946; the starting value is odd with 16 positive divisors.

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Prime Factor Structure

Factorization String 3 × 5 × 17 × 1613
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 697,248
Proper Divisor Sum 285,933
Digit Sum / Digital Root 15 (Root: 6)
Adjacent Primes #411311 ← → #411337

Radix Representation

Decimal 411315
Binary 1100100011010110011 (19 bits)
Octal 0o1443263
Hexadecimal 0x646B3

Divisor Catalog (5 of 16)

1 3 5 15 17

Collatz Trajectory (130 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.

411,315 1,233,946 616,973 1,850,920 925,460

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