1,245,985
5 × 13 × 29 × 661
Deficient
Odd
Composite
1,245,985 factors as 5 × 13 × 29 × 661. Its 16 positive divisors give a proper-divisor sum of 422,255, so this integer is deficient. The Collatz stopping time is 134 steps.
Resources
Prime Factor Structure
Factorization String
5 × 13 × 29 × 661
Distinct Prime Factors
4
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
16
Divisor Sum (σ)
1,668,240
Proper Divisor Sum
422,255
Digit Sum / Digital Root
34 (Root: 7)
Adjacent Primes
#1245973 ← → #1246013
Radix Representation
| Decimal | 1245985 |
| Binary | 100110000001100100001 (21 bits) |
| Octal | 0o4601441 |
| Hexadecimal | 0x130321 |
Divisor Catalog (5 of 16)
Collatz Trajectory (134 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.