λ
Sigma Notebook

3,978,689

11 × 13 × 27823
Deficient Odd Composite

3,978,689 is odd and not a perfect square. Its factorization is 11 × 13 × 27823 and its 8 divisors sum to 4,674,432.

Prime Factor Structure

Factorization String 11 × 13 × 27823
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 4,674,432
Proper Divisor Sum 695,743
Digit Sum / Digital Root 50 (Root: 5)
Adjacent Primes #3978683 ← → #3978707

Radix Representation

Decimal 3978689
Binary 1111001011010111000001 (22 bits)
Octal 0o17132701
Hexadecimal 0x3CB5C1

Divisor Catalog (8)

1 11 13 143 27,823 306,053 361,699 3,978,689

Collatz Trajectory (216 steps to reach 1)

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

3,978,689 11,936,068 5,968,034 2,984,017 8,952,052 4,476,026 2,238,013 6,714,040 3,357,020 1,678,510 839,255 2,517,766 1,258,883 3,776,650 1,888,325 5,664,976 2,832,488 1,416,244 708,122 354,061 1,062,184 531,092 265,546 132,773 398,320 199,160 99,580 49,790 24,895 74,686 37,343 112,030 56,015 168,046 84,023 252,070 126,035 378,106 189,053 567,160 283,580 141,790 70,895 212,686 106,343 319,030 159,515 478,546 239,273 717,820 358,910 179,455 538,366 269,183 807,550 403,775 1,211,326 605,663 1,816,990 908,495

More profiles

← Previous Integer #3,978,688 Browse Full Index Next Integer #3,978,690 →