7,288,990

2 × 5 × 728899

Starting at 7,288,990, the Collatz iteration reaches 1 after 59 steps. The first transition is 3644495; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 5 × 728899

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 13,120,200

Proper Divisor Sum 5,831,210

Digit Sum / Digital Root 43 (Root: 7)

Adjacent Primes #7288979 ← → #7288993

Radix Representation

Decimal	7288990
Binary	11011110011100010011110 (23 bits)
Octal	0o33634236
Hexadecimal	0x6F389E

Divisor Catalog (8)

1 2 5 10 728,899 1,457,798 3,644,495 7,288,990

Collatz Trajectory (59 steps to reach 1)

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

7,288,990 3,644,495 10,933,486 5,466,743 16,400,230 8,200,115 24,600,346 12,300,173 36,900,520 18,450,260 9,225,130 4,612,565 13,837,696 6,918,848 3,459,424 1,729,712 864,856 432,428 216,214 108,107 324,322 162,161 486,484 243,242 121,621 364,864 182,432 91,216 45,608 22,804 11,402 5,701 17,104 8,552 4,276 2,138 1,069 3,208 1,604 802 401 1,204 602 301 904 452 226 113 340 170 85 256 128 64 32 16 8 4 2 1

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