13,664,740

2² × 5 × 397 × 1721

Prime Factor Structure

Factorization String 2^2 × 5 × 397 × 1721

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 24

Divisor Sum (σ) 28,784,952

Proper Divisor Sum 15,120,212

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #13664723 ← → #13664747

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

13,664,740 6,832,370 3,416,185 10,248,556 5,124,278 2,562,139 7,686,418 3,843,209 11,529,628 5,764,814 2,882,407 8,647,222 4,323,611 12,970,834 6,485,417 19,456,252 9,728,126 4,864,063 14,592,190 7,296,095 21,888,286 10,944,143 32,832,430 16,416,215 49,248,646 24,624,323 73,872,970 36,936,485 110,809,456 55,404,728 27,702,364 13,851,182 6,925,591 20,776,774 10,388,387 31,165,162 15,582,581 46,747,744 23,373,872 11,686,936 5,843,468 2,921,734 1,460,867 4,382,602 2,191,301 6,573,904 3,286,952 1,643,476 821,738 410,869 1,232,608 616,304 308,152 154,076 77,038 38,519 115,558 57,779 173,338 86,669

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