2 × 3² × 7 × 409

Prime Factor Structure

Factorization String 2 × 3^2 × 7 × 409

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 127,920

Proper Divisor Sum 76,386

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #51521 ← → #51539

1 2 3 6 7 9 14 18 21 42 63 126 409 818 1,227 2,454 2,863 3,681 5,726 7,362 8,589 17,178 25,767 51,534

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

51,534 25,767 77,302 38,651 115,954 57,977 173,932 86,966 43,483 130,450 65,225 195,676 97,838 48,919 146,758 73,379 220,138 110,069 330,208 165,104 82,552 41,276 20,638 10,319 30,958 15,479 46,438 23,219 69,658 34,829 104,488 52,244 26,122 13,061 39,184 19,592 9,796 4,898 2,449 7,348 3,674 1,837 5,512 2,756 1,378 689 2,068 1,034 517 1,552 776 388 194 97 292 146 73 220 110 55

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