7,621,243

7 × 1088749

Starting at 7,621,243, the Collatz iteration reaches 1 after 80 steps. The first transition is 22863730; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 7 × 1088749

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 8,710,000

Proper Divisor Sum 1,088,757

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #7621217 ← → #7621249

Radix Representation

Decimal	7621243
Binary	11101000100101001111011 (23 bits)
Octal	0o35045173
Hexadecimal	0x744A7B

Divisor Catalog (4)

1 7 1,088,749 7,621,243

Collatz Trajectory (80 steps to reach 1)

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

7,621,243 22,863,730 11,431,865 34,295,596 17,147,798 8,573,899 25,721,698 12,860,849 38,582,548 19,291,274 9,645,637 28,936,912 14,468,456 7,234,228 3,617,114 1,808,557 5,425,672 2,712,836 1,356,418 678,209 2,034,628 1,017,314 508,657 1,525,972 762,986 381,493 1,144,480 572,240 286,120 143,060 71,530 35,765 107,296 53,648 26,824 13,412 6,706 3,353 10,060 5,030 2,515 7,546 3,773 11,320 5,660 2,830 1,415 4,246 2,123 6,370 3,185 9,556 4,778 2,389 7,168 3,584 1,792 896 448 224

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