16,618,446

2 × 3⁴ × 13² × 607

16,618,446 factors as 2 × 3^4 × 13^2 × 607. Its 60 positive divisors give a proper-divisor sum of 23,770,386, so this integer is abundant. The Collatz stopping time is 138 steps.

Prime Factor Structure

Factorization String 2 × 3^4 × 13^2 × 607

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 60

Divisor Sum (σ) 40,388,832

Proper Divisor Sum 23,770,386

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #16618429 ← → #16618447

Radix Representation

Decimal	16618446
Binary	111111011001001111001110 (24 bits)
Octal	0o77311716
Hexadecimal	0xFD93CE

Divisor Catalog (60)

1 2 3 6 9 13 18 26 27 39 54 78 81 117 162 169 234 338 351 507 607 702 1,014 1,053 1,214 1,521 1,821 2,106 3,042 3,642 4,563 5,463 7,891 9,126 10,926 13,689 15,782 16,389 23,673 27,378 32,778 47,346 49,167 71,019 98,334 102,583 142,038 205,166 213,057 307,749 426,114 615,498 639,171 923,247 1,278,342 1,846,494 2,769,741 5,539,482 8,309,223 16,618,446

Collatz Trajectory (138 steps to reach 1)

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

16,618,446 8,309,223 24,927,670 12,463,835 37,391,506 18,695,753 56,087,260 28,043,630 14,021,815 42,065,446 21,032,723 63,098,170 31,549,085 94,647,256 47,323,628 23,661,814 11,830,907 35,492,722 17,746,361 53,239,084 26,619,542 13,309,771 39,929,314 19,964,657 59,893,972 29,946,986 14,973,493 44,920,480 22,460,240 11,230,120 5,615,060 2,807,530 1,403,765 4,211,296 2,105,648 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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