λ
Sigma Notebook

1,927,731

3 × 13 × 49429
Deficient Odd Composite

1,927,731 is odd and not a perfect square. Its factorization is 3 × 13 × 49429 and its 8 divisors sum to 2,768,080.

Prime Factor Structure

Factorization String 3 × 13 × 49429
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 2,768,080
Proper Divisor Sum 840,349
Digit Sum / Digital Root 30 (Root: 3)
Adjacent Primes #1927729 ← → #1927741

Radix Representation

Decimal 1927731
Binary 111010110101000110011 (21 bits)
Octal 0o7265063
Hexadecimal 0x1D6A33

Divisor Catalog (8)

1 3 13 39 49,429 148,287 642,577 1,927,731

Collatz Trajectory (246 steps to reach 1)

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

1,927,731 5,783,194 2,891,597 8,674,792 4,337,396 2,168,698 1,084,349 3,253,048 1,626,524 813,262 406,631 1,219,894 609,947 1,829,842 914,921 2,744,764 1,372,382 686,191 2,058,574 1,029,287 3,087,862 1,543,931 4,631,794 2,315,897 6,947,692 3,473,846 1,736,923 5,210,770 2,605,385 7,816,156 3,908,078 1,954,039 5,862,118 2,931,059 8,793,178 4,396,589 13,189,768 6,594,884 3,297,442 1,648,721 4,946,164 2,473,082 1,236,541 3,709,624 1,854,812 927,406 463,703 1,391,110 695,555 2,086,666 1,043,333 3,130,000 1,565,000 782,500 391,250 195,625 586,876 293,438 146,719 440,158

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