25,643,260

2² × 5 × 1282163

25,643,260 factors as 2^2 × 5 × 1282163. Its 12 positive divisors give a proper-divisor sum of 28,207,628, so this integer is abundant. The Collatz stopping time is 286 steps.

Prime Factor Structure

Factorization String 2^2 × 5 × 1282163

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 53,850,888

Proper Divisor Sum 28,207,628

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #25643251 ← → #25643263

Radix Representation

Decimal	25643260
Binary	1100001110100100011111100 (25 bits)
Octal	0o141644374
Hexadecimal	0x18748FC

Divisor Catalog (12)

1 2 4 5 10 20 1,282,163 2,564,326 5,128,652 6,410,815 12,821,630 25,643,260

Collatz Trajectory (286 steps to reach 1)

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

25,643,260 12,821,630 6,410,815 19,232,446 9,616,223 28,848,670 14,424,335 43,273,006 21,636,503 64,909,510 32,454,755 97,364,266 48,682,133 146,046,400 73,023,200 36,511,600 18,255,800 9,127,900 4,563,950 2,281,975 6,845,926 3,422,963 10,268,890 5,134,445 15,403,336 7,701,668 3,850,834 1,925,417 5,776,252 2,888,126 1,444,063 4,332,190 2,166,095 6,498,286 3,249,143 9,747,430 4,873,715 14,621,146 7,310,573 21,931,720 10,965,860 5,482,930 2,741,465 8,224,396 4,112,198 2,056,099 6,168,298 3,084,149 9,252,448 4,626,224 2,313,112 1,156,556 578,278 289,139 867,418 433,709 1,301,128 650,564 325,282 162,641

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