λ
Ratio Atlas

15,665,692

22 × 72 × 257 × 311
Abundant Even Composite

15,665,692 factors as 2^2 × 7^2 × 257 × 311. Its 36 positive divisors give a proper-divisor sum of 16,452,212, so this integer is abundant. The Collatz stopping time is 94 steps.

Prime Factor Structure

Factorization String 2^2 × 7^2 × 257 × 311
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 36
Divisor Sum (σ) 32,117,904
Proper Divisor Sum 16,452,212
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #15665681 ← → #15665701

Radix Representation

Decimal 15665692
Binary 111011110000101000011100 (24 bits)
Octal 0o73605034
Hexadecimal 0xEF0A1C

Divisor Catalog (36)

Collatz Trajectory (94 steps to reach 1)

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

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