13 × 17² × 307

Prime Factor Structure

Factorization String 13 × 17^2 × 307

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 1,323,784

Proper Divisor Sum 170,385

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #1153393 ← → #1153421

1 13 17 221 289 307 3,757 3,991 5,219 67,847 88,723 1,153,399

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

1,153,399 3,460,198 1,730,099 5,190,298 2,595,149 7,785,448 3,892,724 1,946,362 973,181 2,919,544 1,459,772 729,886 364,943 1,094,830 547,415 1,642,246 821,123 2,463,370 1,231,685 3,695,056 1,847,528 923,764 461,882 230,941 692,824 346,412 173,206 86,603 259,810 129,905 389,716 194,858 97,429 292,288 146,144 73,072 36,536 18,268 9,134 4,567 13,702 6,851 20,554 10,277 30,832 15,416 7,708 3,854 1,927 5,782 2,891 8,674 4,337 13,012 6,506 3,253 9,760 4,880 2,440 1,220

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