λ
Sequence Observatory

1,704,040

23 × 5 × 13 × 29 × 113
Abundant Even Composite

Starting at 1,704,040, the Collatz iteration reaches 1 after 220 steps. The first transition is 852020; the starting value is even with 64 positive divisors.

Resources

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Prime Factor Structure

Factorization String 2^3 × 5 × 13 × 29 × 113
Distinct Prime Factors 5
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 64
Divisor Sum (σ) 4,309,200
Proper Divisor Sum 2,605,160
Digit Sum / Digital Root 16 (Root: 7)
Adjacent Primes #1704023 ← → #1704041

Radix Representation

Decimal 1704040
Binary 110100000000001101000 (21 bits)
Octal 0o6400150
Hexadecimal 0x1A0068

Divisor Catalog (5 of 64)

1 2 4 5 8

Collatz Trajectory (220 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.

1,704,040 852,020 426,010 213,005 639,016

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