684,138

2 × 3 × 7² × 13 × 179

Prime Factor Structure

Factorization String 2 × 3 × 7^2 × 13 × 179

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Total Divisors 48

Divisor Sum (σ) 1,723,680

Proper Divisor Sum 1,039,542

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #684127 ← → #684157

1 2 3 6 7 13 14 21 26 39 42 49 78 91 98 147 179 182 273 294 358 537 546 637 1,074 1,253 1,274 1,911 2,327 2,506 3,759 3,822 4,654 6,981 7,518 8,771 13,962 16,289 17,542 26,313 32,578 48,867 52,626 97,734 114,023 228,046 342,069 684,138

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

684,138 342,069 1,026,208 513,104 256,552 128,276 64,138 32,069 96,208 48,104 24,052 12,026 6,013 18,040 9,020 4,510 2,255 6,766 3,383 10,150 5,075 15,226 7,613 22,840 11,420 5,710 2,855 8,566 4,283 12,850 6,425 19,276 9,638 4,819 14,458 7,229 21,688 10,844 5,422 2,711 8,134 4,067 12,202 6,101 18,304 9,152 4,576 2,288 1,144 572 286 143 430 215 646 323 970 485 1,456 728

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