131,121
32 × 17 × 857
Deficient
Odd
Composite
The decimal integer 131,121 is 100000000000110001 in binary (18 bits), 400061 in octal and 20031 in hexadecimal. Its digit sum is 9.
Resources
Prime Factor Structure
Factorization String
3^2 × 17 × 857
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
12
Divisor Sum (σ)
200,772
Proper Divisor Sum
69,651
Digit Sum / Digital Root
9 (Root: 9)
Adjacent Primes
#131113 ← → #131129
Radix Representation
| Decimal | 131121 |
| Binary | 100000000000110001 (18 bits) |
| Octal | 0o400061 |
| Hexadecimal | 0x20031 |
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.