13 × 1987

Prime Factor Structure

Factorization String 13 × 1987

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 27,832

Proper Divisor Sum 2,001

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #25819 ← → #25841

1 13 1,987 25,831

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

25,831 77,494 38,747 116,242 58,121 174,364 87,182 43,591 130,774 65,387 196,162 98,081 294,244 147,122 73,561 220,684 110,342 55,171 165,514 82,757 248,272 124,136 62,068 31,034 15,517 46,552 23,276 11,638 5,819 17,458 8,729 26,188 13,094 6,547 19,642 9,821 29,464 14,732 7,366 3,683 11,050 5,525 16,576 8,288 4,144 2,072 1,036 518 259 778 389 1,168 584 292 146 73 220 110 55 166

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