6,221,997

3² × 691333

6,221,997 factors as 3^2 × 691333. Its 6 positive divisors give a proper-divisor sum of 2,765,345, so this integer is deficient. The Collatz stopping time is 77 steps.

Prime Factor Structure

Factorization String 3^2 × 691333

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 8,987,342

Proper Divisor Sum 2,765,345

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #6221989 ← → #6222011

Radix Representation

Decimal	6221997
Binary	10111101111000010101101 (23 bits)
Octal	0o27570255
Hexadecimal	0x5EF0AD

Divisor Catalog (6)

1 3 9 691,333 2,073,999 6,221,997

Collatz Trajectory (77 steps to reach 1)

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

6,221,997 18,665,992 9,332,996 4,666,498 2,333,249 6,999,748 3,499,874 1,749,937 5,249,812 2,624,906 1,312,453 3,937,360 1,968,680 984,340 492,170 246,085 738,256 369,128 184,564 92,282 46,141 138,424 69,212 34,606 17,303 51,910 25,955 77,866 38,933 116,800 58,400 29,200 14,600 7,300 3,650 1,825 5,476 2,738 1,369 4,108 2,054 1,027 3,082 1,541 4,624 2,312 1,156 578 289 868 434 217 652 326 163 490 245 736 368 184

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