λ
Sigma Notebook

3,978,685

5 × 795737
Deficient Odd Composite

3,978,685 is odd and not a perfect square. Its factorization is 5 × 795737 and its 4 divisors sum to 4,774,428.

Prime Factor Structure

Factorization String 5 × 795737
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 4,774,428
Proper Divisor Sum 795,743
Digit Sum / Digital Root 46 (Root: 1)
Adjacent Primes #3978683 ← → #3978707

Radix Representation

Decimal 3978685
Binary 1111001011010110111101 (22 bits)
Octal 0o17132675
Hexadecimal 0x3CB5BD

Divisor Catalog (4)

1 5 795,737 3,978,685

Collatz Trajectory (141 steps to reach 1)

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

3,978,685 11,936,056 5,968,028 2,984,014 1,492,007 4,476,022 2,238,011 6,714,034 3,357,017 10,071,052 5,035,526 2,517,763 7,553,290 3,776,645 11,329,936 5,664,968 2,832,484 1,416,242 708,121 2,124,364 1,062,182 531,091 1,593,274 796,637 2,389,912 1,194,956 597,478 298,739 896,218 448,109 1,344,328 672,164 336,082 168,041 504,124 252,062 126,031 378,094 189,047 567,142 283,571 850,714 425,357 1,276,072 638,036 319,018 159,509 478,528 239,264 119,632 59,816 29,908 14,954 7,477 22,432 11,216 5,608 2,804 1,402 701

More profiles

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