387,645

3 × 5 × 43 × 601

Prime Factor Structure

Factorization String 3 × 5 × 43 × 601

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 635,712

Proper Divisor Sum 248,067

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #387641 ← → #387659

1 3 5 15 43 129 215 601 645 1,803 3,005 9,015 25,843 77,529 129,215 387,645

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

387,645 1,162,936 581,468 290,734 145,367 436,102 218,051 654,154 327,077 981,232 490,616 245,308 122,654 61,327 183,982 91,991 275,974 137,987 413,962 206,981 620,944 310,472 155,236 77,618 38,809 116,428 58,214 29,107 87,322 43,661 130,984 65,492 32,746 16,373 49,120 24,560 12,280 6,140 3,070 1,535 4,606 2,303 6,910 3,455 10,366 5,183 15,550 7,775 23,326 11,663 34,990 17,495 52,486 26,243 78,730 39,365 118,096 59,048 29,524 14,762

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