2² × 7² × 3511

Prime Factor Structure

Factorization String 2^2 × 7^2 × 3511

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 1,401,288

Proper Divisor Sum 713,132

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #688147 ← → #688159

1 2 4 7 14 28 49 98 196 3,511 7,022 14,044 24,577 49,154 98,308 172,039 344,078 688,156

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

688,156 344,078 172,039 516,118 258,059 774,178 387,089 1,161,268 580,634 290,317 870,952 435,476 217,738 108,869 326,608 163,304 81,652 40,826 20,413 61,240 30,620 15,310 7,655 22,966 11,483 34,450 17,225 51,676 25,838 12,919 38,758 19,379 58,138 29,069 87,208 43,604 21,802 10,901 32,704 16,352 8,176 4,088 2,044 1,022 511 1,534 767 2,302 1,151 3,454 1,727 5,182 2,591 7,774 3,887 11,662 5,831 17,494 8,747 26,242

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