345,628
22 × 71 × 1217
Deficient
Even
Composite
345,628 has digital root 1. The neighboring primes are 345607 and 345637; its proper-divisor sum differs from the starting integer by -77,384.
Resources
Prime Factor Structure
Factorization String
2^2 × 71 × 1217
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
12
Divisor Sum (σ)
613,872
Proper Divisor Sum
268,244
Digit Sum / Digital Root
28 (Root: 1)
Adjacent Primes
#345607 ← → #345637
Radix Representation
| Decimal | 345628 |
| Binary | 1010100011000011100 (19 bits) |
| Octal | 0o1243034 |
| Hexadecimal | 0x5461C |
Divisor Catalog (5 of 12)
Collatz Trajectory (73 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.