420,817
71 × 5927
Deficient
Odd
Composite
Starting at 420,817, the Collatz iteration reaches 1 after 130 steps. The first transition is 1262452; the starting value is odd with 4 positive divisors.
Resources
Prime Factor Structure
Factorization String
71 × 5927
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
4
Divisor Sum (σ)
426,816
Proper Divisor Sum
5,999
Digit Sum / Digital Root
22 (Root: 4)
Adjacent Primes
#420811 ← → #420851
Radix Representation
| Decimal | 420817 |
| Binary | 1100110101111010001 (19 bits) |
| Octal | 0o1465721 |
| Hexadecimal | 0x66BD1 |
Divisor Catalog (4)
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.