2 × 3² × 53 × 409

Prime Factor Structure

Factorization String 2 × 3^2 × 53 × 409

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 863,460

Proper Divisor Sum 473,274

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #390161 ← → #390191

1 2 3 6 9 18 53 106 159 318 409 477 818 954 1,227 2,454 3,681 7,362 21,677 43,354 65,031 130,062 195,093 390,186

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

390,186 195,093 585,280 292,640 146,320 73,160 36,580 18,290 9,145 27,436 13,718 6,859 20,578 10,289 30,868 15,434 7,717 23,152 11,576 5,788 2,894 1,447 4,342 2,171 6,514 3,257 9,772 4,886 2,443 7,330 3,665 10,996 5,498 2,749 8,248 4,124 2,062 1,031 3,094 1,547 4,642 2,321 6,964 3,482 1,741 5,224 2,612 1,306 653 1,960 980 490 245 736 368 184 92 46 23 70

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