2² × 3² × 43 × 337

Prime Factor Structure

Factorization String 2^2 × 3^2 × 43 × 337

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 1,353,352

Proper Divisor Sum 831,676

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #521671 ← → #521693

1 2 3 4 6 9 12 18 36 43 86 129 172 258 337 387 516 674 774 1,011 1,348 1,548 2,022 3,033 4,044 6,066 12,132 14,491 28,982 43,473 57,964 86,946 130,419 173,892 260,838 521,676

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

521,676 260,838 130,419 391,258 195,629 586,888 293,444 146,722 73,361 220,084 110,042 55,021 165,064 82,532 41,266 20,633 61,900 30,950 15,475 46,426 23,213 69,640 34,820 17,410 8,705 26,116 13,058 6,529 19,588 9,794 4,897 14,692 7,346 3,673 11,020 5,510 2,755 8,266 4,133 12,400 6,200 3,100 1,550 775 2,326 1,163 3,490 1,745 5,236 2,618 1,309 3,928 1,964 982 491 1,474 737 2,212 1,106 553

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