λ
Integer Codex

1,561,786

2 × 743 × 1051
Deficient Even Composite

For 1,561,786, the 8 positive divisors have a total of 2,348,064. Removing 1,561,786 leaves 786,278, which gives the deficient classification.

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Prime Factor Structure

Factorization String 2 × 743 × 1051
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 2,348,064
Proper Divisor Sum 786,278
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #1561759 ← → #1561801

Radix Representation

Decimal 1561786
Binary 101111101010010111010 (21 bits)
Octal 0o5752272
Hexadecimal 0x17D4BA

Divisor Catalog (5 of 8)

1 2 743 1,051 1,486

Collatz Trajectory (132 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.

1,561,786 780,893 2,342,680 1,171,340 585,670

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