2² × 3 × 7 × 1531

Prime Factor Structure

Factorization String 2^2 × 3 × 7 × 1531

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 343,168

Proper Divisor Sum 214,564

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #128603 ← → #128621

1 2 3 4 6 7 12 14 21 28 42 84 1,531 3,062 4,593 6,124 9,186 10,717 18,372 21,434 32,151 42,868 64,302 128,604

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

128,604 64,302 32,151 96,454 48,227 144,682 72,341 217,024 108,512 54,256 27,128 13,564 6,782 3,391 10,174 5,087 15,262 7,631 22,894 11,447 34,342 17,171 51,514 25,757 77,272 38,636 19,318 9,659 28,978 14,489 43,468 21,734 10,867 32,602 16,301 48,904 24,452 12,226 6,113 18,340 9,170 4,585 13,756 6,878 3,439 10,318 5,159 15,478 7,739 23,218 11,609 34,828 17,414 8,707 26,122 13,061 39,184 19,592 9,796 4,898

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