3 × 7³ × 389

Prime Factor Structure

Factorization String 3 × 7^3 × 389

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 624,000

Proper Divisor Sum 223,719

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #400277 ← → #400291

1 3 7 21 49 147 343 389 1,029 1,167 2,723 8,169 19,061 57,183 133,427 400,281

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

400,281 1,200,844 600,422 300,211 900,634 450,317 1,350,952 675,476 337,738 168,869 506,608 253,304 126,652 63,326 31,663 94,990 47,495 142,486 71,243 213,730 106,865 320,596 160,298 80,149 240,448 120,224 60,112 30,056 15,028 7,514 3,757 11,272 5,636 2,818 1,409 4,228 2,114 1,057 3,172 1,586 793 2,380 1,190 595 1,786 893 2,680 1,340 670 335 1,006 503 1,510 755 2,266 1,133 3,400 1,700 850 425

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