5,123,986

2 × 7 × 23 × 15913

Starting at 5,123,986, the Collatz iteration reaches 1 after 131 steps. The first transition is 2561993; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 7 × 23 × 15913

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 9,166,464

Proper Divisor Sum 4,042,478

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #5123983 ← → #5124001

Radix Representation

Decimal	5123986
Binary	10011100010111110010010 (23 bits)
Octal	0o23427622
Hexadecimal	0x4E2F92

Divisor Catalog (16)

1 2 7 14 23 46 161 322 15,913 31,826 111,391 222,782 365,999 731,998 2,561,993 5,123,986

Collatz Trajectory (131 steps to reach 1)

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

5,123,986 2,561,993 7,685,980 3,842,990 1,921,495 5,764,486 2,882,243 8,646,730 4,323,365 12,970,096 6,485,048 3,242,524 1,621,262 810,631 2,431,894 1,215,947 3,647,842 1,823,921 5,471,764 2,735,882 1,367,941 4,103,824 2,051,912 1,025,956 512,978 256,489 769,468 384,734 192,367 577,102 288,551 865,654 432,827 1,298,482 649,241 1,947,724 973,862 486,931 1,460,794 730,397 2,191,192 1,095,596 547,798 273,899 821,698 410,849 1,232,548 616,274 308,137 924,412 462,206 231,103 693,310 346,655 1,039,966 519,983 1,559,950 779,975 2,339,926 1,169,963

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