λ
Harmonic Matrix

684,859

7 × 227 × 431
Deficient Odd Composite

684,859 has digital root 4. The neighboring primes are 684857 and 684869; its proper-divisor sum differs from the starting integer by -581,750.

Prime Factor Structure

Factorization String 7 × 227 × 431
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 787,968
Proper Divisor Sum 103,109
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #684857 ← → #684869

Radix Representation

Decimal 684859
Binary 10100111001100111011 (20 bits)
Octal 0o2471473
Hexadecimal 0xA733B

Divisor Catalog (8)

1 7 227 431 1,589 3,017 97,837 684,859

Collatz Trajectory (198 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

684,859 2,054,578 1,027,289 3,081,868 1,540,934 770,467 2,311,402 1,155,701 3,467,104 1,733,552 866,776 433,388 216,694 108,347 325,042 162,521 487,564 243,782 121,891 365,674 182,837 548,512 274,256 137,128 68,564 34,282 17,141 51,424 25,712 12,856 6,428 3,214 1,607 4,822 2,411 7,234 3,617 10,852 5,426 2,713 8,140 4,070 2,035 6,106 3,053 9,160 4,580 2,290 1,145 3,436 1,718 859 2,578 1,289 3,868 1,934 967 2,902 1,451 4,354

More profiles

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