18,655,425

3² × 5² × 82913

18,655,425 factors as 3^2 × 5^2 × 82913. Its 18 positive divisors give a proper-divisor sum of 14,758,917, so this integer is deficient. The Collatz stopping time is 182 steps.

Prime Factor Structure

Factorization String 3^2 × 5^2 × 82913

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 33,414,342

Proper Divisor Sum 14,758,917

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #18655423 ← → #18655453

Radix Representation

Decimal	18655425
Binary	1000111001010100011000001 (25 bits)
Octal	0o107124301
Hexadecimal	0x11CA8C1

Divisor Catalog (18)

1 3 5 9 15 25 45 75 225 82,913 248,739 414,565 746,217 1,243,695 2,072,825 3,731,085 6,218,475 18,655,425

Collatz Trajectory (182 steps to reach 1)

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

18,655,425 55,966,276 27,983,138 13,991,569 41,974,708 20,987,354 10,493,677 31,481,032 15,740,516 7,870,258 3,935,129 11,805,388 5,902,694 2,951,347 8,854,042 4,427,021 13,281,064 6,640,532 3,320,266 1,660,133 4,980,400 2,490,200 1,245,100 622,550 311,275 933,826 466,913 1,400,740 700,370 350,185 1,050,556 525,278 262,639 787,918 393,959 1,181,878 590,939 1,772,818 886,409 2,659,228 1,329,614 664,807 1,994,422 997,211 2,991,634 1,495,817 4,487,452 2,243,726 1,121,863 3,365,590 1,682,795 5,048,386 2,524,193 7,572,580 3,786,290 1,893,145 5,679,436 2,839,718 1,419,859 4,259,578

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