λ
Sequence Observatory

6,390,520

23 × 5 × 159763
Abundant Even Composite

Starting at 6,390,520, the Collatz iteration reaches 1 after 302 steps. The first transition is 3195260; the starting value is even with 16 positive divisors.

Resources

JSON

Prime Factor Structure

Factorization String 2^3 × 5 × 159763
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 14,378,760
Proper Divisor Sum 7,988,240
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #6390499 ← → #6390533

Radix Representation

Decimal 6390520
Binary 11000011000001011111000 (23 bits)
Octal 0o30301370
Hexadecimal 0x6182F8

Divisor Catalog (5 of 16)

1 2 4 5 8

Collatz Trajectory (302 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.

6,390,520 3,195,260 1,597,630 798,815 2,396,446

More profiles

← Previous Integer #6,390,519 Browse Full Index Next Integer #6,390,521 →