λ
Sigma Notebook

1,512,991

53 × 28547
Deficient Odd Composite

1,512,991 is odd and not a perfect square. Its factorization is 53 × 28547 and its 4 divisors sum to 1,541,592.

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Prime Factor Structure

Factorization String 53 × 28547
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,541,592
Proper Divisor Sum 28,601
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #1512961 ← → #1513013

Radix Representation

Decimal 1512991
Binary 101110001011000011111 (21 bits)
Octal 0o5613037
Hexadecimal 0x17161F

Divisor Catalog (4)

1 53 28,547 1,512,991

Collatz Trajectory (243 steps to reach 1)

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

Showing the first 5 trajectory entries; the stopping-time total above is unchanged.

1,512,991 4,538,974 2,269,487 6,808,462 3,404,231

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