642,735
35 × 5 × 232
Deficient
Odd
Composite
Starting at 642,735, the Collatz iteration reaches 1 after 79 steps. The first transition is 1928206; the starting value is odd with 36 positive divisors.
Resources
Prime Factor Structure
Factorization String
3^5 × 5 × 23^2
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
36
Divisor Sum (σ)
1,207,752
Proper Divisor Sum
565,017
Digit Sum / Digital Root
27 (Root: 9)
Adjacent Primes
#642701 ← → #642737
Radix Representation
| Decimal | 642735 |
| Binary | 10011100111010101111 (20 bits) |
| Octal | 0o2347257 |
| Hexadecimal | 0x9CEAF |
Divisor Catalog (5 of 36)
Collatz Trajectory (79 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.