321,281
101 × 3181
Deficient
Odd
Composite
321,281 has digital root 8. The neighboring primes are 321247 and 321289; its proper-divisor sum differs from the starting integer by -317,998.
Resources
Prime Factor Structure
Factorization String
101 × 3181
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
4
Divisor Sum (σ)
324,564
Proper Divisor Sum
3,283
Digit Sum / Digital Root
17 (Root: 8)
Adjacent Primes
#321247 ← → #321289
Radix Representation
| Decimal | 321281 |
| Binary | 1001110011100000001 (19 bits) |
| Octal | 0o1163401 |
| Hexadecimal | 0x4E701 |
Divisor Catalog (4)
Collatz Trajectory (70 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.