7,137,986

2 × 3568993

Starting at 7,137,986, the Collatz iteration reaches 1 after 121 steps. The first transition is 3568993; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 3568993

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 10,706,982

Proper Divisor Sum 3,568,996

Digit Sum / Digital Root 41 (Root: 5)

Adjacent Primes #7137961 ← → #7137989

Radix Representation

Decimal	7137986
Binary	11011001110101011000010 (23 bits)
Octal	0o33165302
Hexadecimal	0x6CEAC2

Divisor Catalog (4)

1 2 3,568,993 7,137,986

Collatz Trajectory (121 steps to reach 1)

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

7,137,986 3,568,993 10,706,980 5,353,490 2,676,745 8,030,236 4,015,118 2,007,559 6,022,678 3,011,339 9,034,018 4,517,009 13,551,028 6,775,514 3,387,757 10,163,272 5,081,636 2,540,818 1,270,409 3,811,228 1,905,614 952,807 2,858,422 1,429,211 4,287,634 2,143,817 6,431,452 3,215,726 1,607,863 4,823,590 2,411,795 7,235,386 3,617,693 10,853,080 5,426,540 2,713,270 1,356,635 4,069,906 2,034,953 6,104,860 3,052,430 1,526,215 4,578,646 2,289,323 6,867,970 3,433,985 10,301,956 5,150,978 2,575,489 7,726,468 3,863,234 1,931,617 5,794,852 2,897,426 1,448,713 4,346,140 2,173,070 1,086,535 3,259,606 1,629,803

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