2⁴ × 41 × 331

Prime Factor Structure

Factorization String 2^4 × 41 × 331

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 20

Divisor Sum (σ) 432,264

Proper Divisor Sum 215,128

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #217121 ← → #217157

1 2 4 8 16 41 82 164 328 331 656 662 1,324 2,648 5,296 13,571 27,142 54,284 108,568 217,136

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

217,136 108,568 54,284 27,142 13,571 40,714 20,357 61,072 30,536 15,268 7,634 3,817 11,452 5,726 2,863 8,590 4,295 12,886 6,443 19,330 9,665 28,996 14,498 7,249 21,748 10,874 5,437 16,312 8,156 4,078 2,039 6,118 3,059 9,178 4,589 13,768 6,884 3,442 1,721 5,164 2,582 1,291 3,874 1,937 5,812 2,906 1,453 4,360 2,180 1,090 545 1,636 818 409 1,228 614 307 922 461 1,384

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