28,626,258

2 × 3 × 373 × 12791

28,626,258 factors as 2 × 3 × 373 × 12791. Its 16 positive divisors give a proper-divisor sum of 28,784,238, so this integer is abundant. The Collatz stopping time is 149 steps.

Prime Factor Structure

Factorization String 2 × 3 × 373 × 12791

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 57,410,496

Proper Divisor Sum 28,784,238

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #28626253 ← → #28626341

Radix Representation

Decimal	28626258
Binary	1101101001100110101010010 (25 bits)
Octal	0o155146522
Hexadecimal	0x1B4CD52

Divisor Catalog (16)

1 2 3 6 373 746 1,119 2,238 12,791 25,582 38,373 76,746 4,771,043 9,542,086 14,313,129 28,626,258

Collatz Trajectory (149 steps to reach 1)

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

28,626,258 14,313,129 42,939,388 21,469,694 10,734,847 32,204,542 16,102,271 48,306,814 24,153,407 72,460,222 36,230,111 108,690,334 54,345,167 163,035,502 81,517,751 244,553,254 122,276,627 366,829,882 183,414,941 550,244,824 275,122,412 137,561,206 68,780,603 206,341,810 103,170,905 309,512,716 154,756,358 77,378,179 232,134,538 116,067,269 348,201,808 174,100,904 87,050,452 43,525,226 21,762,613 65,287,840 32,643,920 16,321,960 8,160,980 4,080,490 2,040,245 6,120,736 3,060,368 1,530,184 765,092 382,546 191,273 573,820 286,910 143,455 430,366 215,183 645,550 322,775 968,326 484,163 1,452,490 726,245 2,178,736 1,089,368

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