679,215
3 × 5 × 45281
Deficient
Odd
Composite
Starting at 679,215, the Collatz iteration reaches 1 after 136 steps. The first transition is 2037646; the starting value is odd with 8 positive divisors.
Resources
Prime Factor Structure
Factorization String
3 × 5 × 45281
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
8
Divisor Sum (σ)
1,086,768
Proper Divisor Sum
407,553
Digit Sum / Digital Root
30 (Root: 3)
Adjacent Primes
#679207 ← → #679219
Radix Representation
| Decimal | 679215 |
| Binary | 10100101110100101111 (20 bits) |
| Octal | 0o2456457 |
| Hexadecimal | 0xA5D2F |
Divisor Catalog (5 of 8)
Collatz Trajectory (136 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.