λ
Sequence Observatory

7,457,525

52 × 199 × 1499
Deficient Odd Composite

Starting at 7,457,525, the Collatz iteration reaches 1 after 173 steps. The first transition is 22372576; the starting value is odd with 12 positive divisors.

Prime Factor Structure

Factorization String 5^2 × 199 × 1499
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 9,300,000
Proper Divisor Sum 1,842,475
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #7457503 ← → #7457561

Radix Representation

Decimal 7457525
Binary 11100011100101011110101 (23 bits)
Octal 0o34345365
Hexadecimal 0x71CAF5

Divisor Catalog (12)

1 5 25 199 995 1,499 4,975 7,495 37,475 298,301 1,491,505 7,457,525

Collatz Trajectory (173 steps to reach 1)

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

7,457,525 22,372,576 11,186,288 5,593,144 2,796,572 1,398,286 699,143 2,097,430 1,048,715 3,146,146 1,573,073 4,719,220 2,359,610 1,179,805 3,539,416 1,769,708 884,854 442,427 1,327,282 663,641 1,990,924 995,462 497,731 1,493,194 746,597 2,239,792 1,119,896 559,948 279,974 139,987 419,962 209,981 629,944 314,972 157,486 78,743 236,230 118,115 354,346 177,173 531,520 265,760 132,880 66,440 33,220 16,610 8,305 24,916 12,458 6,229 18,688 9,344 4,672 2,336 1,168 584 292 146 73 220

More profiles

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