130,975

5² × 13² × 31

Prime Factor Structure

Factorization String 5^2 × 13^2 × 31

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 18

Divisor Sum (σ) 181,536

Proper Divisor Sum 50,561

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #130973 ← → #130981

1 5 13 25 31 65 155 169 325 403 775 845 2,015 4,225 5,239 10,075 26,195 130,975

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

130,975 392,926 196,463 589,390 294,695 884,086 442,043 1,326,130 663,065 1,989,196 994,598 497,299 1,491,898 745,949 2,237,848 1,118,924 559,462 279,731 839,194 419,597 1,258,792 629,396 314,698 157,349 472,048 236,024 118,012 59,006 29,503 88,510 44,255 132,766 66,383 199,150 99,575 298,726 149,363 448,090 224,045 672,136 336,068 168,034 84,017 252,052 126,026 63,013 189,040 94,520 47,260 23,630 11,815 35,446 17,723 53,170 26,585 79,756 39,878 19,939 59,818 29,909

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