16,618,401

3² × 17 × 47 × 2311

16,618,401 factors as 3^2 × 17 × 47 × 2311. Its 24 positive divisors give a proper-divisor sum of 9,349,983, so this integer is deficient. The Collatz stopping time is 138 steps.

Prime Factor Structure

Factorization String 3^2 × 17 × 47 × 2311

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 25,968,384

Proper Divisor Sum 9,349,983

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #16618379 ← → #16618403

Radix Representation

Decimal	16618401
Binary	111111011001001110100001 (24 bits)
Octal	0o77311641
Hexadecimal	0xFD93A1

Divisor Catalog (24)

Collatz Trajectory (138 steps to reach 1)

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

16,618,401 49,855,204 24,927,602 12,463,801 37,391,404 18,695,702 9,347,851 28,043,554 14,021,777 42,065,332 21,032,666 10,516,333 31,549,000 15,774,500 7,887,250 3,943,625 11,830,876 5,915,438 2,957,719 8,873,158 4,436,579 13,309,738 6,654,869 19,964,608 9,982,304 4,991,152 2,495,576 1,247,788 623,894 311,947 935,842 467,921 1,403,764 701,882 350,941 1,052,824 526,412 263,206 131,603 394,810 197,405 592,216 296,108 148,054 74,027 222,082 111,041 333,124 166,562 83,281 249,844 124,922 62,461 187,384 93,692 46,846 23,423 70,270 35,135 105,406

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