2,604,399

3 × 7³ × 2531

2,604,399 is odd and not a perfect square. Its factorization is 3 × 7^3 × 2531 and its 16 divisors sum to 4,051,200.

Prime Factor Structure

Factorization String 3 × 7^3 × 2531

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 4,051,200

Proper Divisor Sum 1,446,801

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #2604391 ← → #2604401

1 3 7 21 49 147 343 1,029 2,531 7,593 17,717 53,151 124,019 372,057 868,133 2,604,399

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

2,604,399 7,813,198 3,906,599 11,719,798 5,859,899 17,579,698 8,789,849 26,369,548 13,184,774 6,592,387 19,777,162 9,888,581 29,665,744 14,832,872 7,416,436 3,708,218 1,854,109 5,562,328 2,781,164 1,390,582 695,291 2,085,874 1,042,937 3,128,812 1,564,406 782,203 2,346,610 1,173,305 3,519,916 1,759,958 879,979 2,639,938 1,319,969 3,959,908 1,979,954 989,977 2,969,932 1,484,966 742,483 2,227,450 1,113,725 3,341,176 1,670,588 835,294 417,647 1,252,942 626,471 1,879,414 939,707 2,819,122 1,409,561 4,228,684 2,114,342 1,057,171 3,171,514 1,585,757 4,757,272 2,378,636 1,189,318 594,659