8,521,126
2 × 1372 × 227
Deficient
Even
Composite
8,521,126 has digital root 7. The neighboring primes are 8521111 and 8521129; its proper-divisor sum differs from the starting integer by -4,109,864.
Resources
Prime Factor Structure
Factorization String
2 × 137^2 × 227
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
12
Divisor Sum (σ)
12,932,388
Proper Divisor Sum
4,411,262
Digit Sum / Digital Root
25 (Root: 7)
Adjacent Primes
#8521111 ← → #8521129
Radix Representation
| Decimal | 8521126 |
| Binary | 100000100000010110100110 (24 bits) |
| Octal | 0o40402646 |
| Hexadecimal | 0x8205A6 |
Divisor Catalog (5 of 12)
Collatz Trajectory (98 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.