428,705
5 × 179 × 479
Deficient
Odd
Composite
428,705 has digital root 8. The neighboring primes are 428693 and 428731; its proper-divisor sum differs from the starting integer by -339,010.
Resources
Prime Factor Structure
Factorization String
5 × 179 × 479
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
8
Divisor Sum (σ)
518,400
Proper Divisor Sum
89,695
Digit Sum / Digital Root
26 (Root: 8)
Adjacent Primes
#428693 ← → #428731
Radix Representation
| Decimal | 428705 |
| Binary | 1101000101010100001 (19 bits) |
| Octal | 0o1505241 |
| Hexadecimal | 0x68AA1 |
Divisor Catalog (5 of 8)
Collatz Trajectory (174 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.