123,988
22 × 139 × 223
Deficient
Even
Composite
123,988 factors as 2^2 × 139 × 223. Its 12 positive divisors give a proper-divisor sum of 95,532, so this integer is deficient. The Collatz stopping time is 56 steps.
Resources
Prime Factor Structure
Factorization String
2^2 × 139 × 223
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
12
Divisor Sum (σ)
219,520
Proper Divisor Sum
95,532
Digit Sum / Digital Root
31 (Root: 4)
Adjacent Primes
#123983 ← → #123989
Radix Representation
| Decimal | 123988 |
| Binary | 11110010001010100 (17 bits) |
| Octal | 0o362124 |
| Hexadecimal | 0x1E454 |
Divisor Catalog (5 of 12)
Collatz Trajectory (56 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.