213,316
22 × 17 × 3137
Deficient
Even
Composite
213,316 has digital root 7. The neighboring primes are 213307 and 213319; its proper-divisor sum differs from the starting integer by -31,244.
Prime Factor Structure
Factorization String
2^2 × 17 × 3137
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
12
Divisor Sum (σ)
395,388
Proper Divisor Sum
182,072
Digit Sum / Digital Root
16 (Root: 7)
Adjacent Primes
#213307 ← → #213319
Radix Representation
| Decimal | 213316 |
| Binary | 110100000101000100 (18 bits) |
| Octal | 0o640504 |
| Hexadecimal | 0x34144 |
Divisor Catalog (12)
Collatz Trajectory (98 steps to reach 1)
Iterative sequence n → n/2 (if even) or 3n+1 (if odd):