684,440

2³ × 5 × 71 × 241

Prime Factor Structure

Factorization String 2^3 × 5 × 71 × 241

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 32

Divisor Sum (σ) 1,568,160

Proper Divisor Sum 883,720

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #684433 ← → #684443

1 2 4 5 8 10 20 40 71 142 241 284 355 482 568 710 964 1,205 1,420 1,928 2,410 2,840 4,820 9,640 17,111 34,222 68,444 85,555 136,888 171,110 342,220 684,440

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

684,440 342,220 171,110 85,555 256,666 128,333 385,000 192,500 96,250 48,125 144,376 72,188 36,094 18,047 54,142 27,071 81,214 40,607 121,822 60,911 182,734 91,367 274,102 137,051 411,154 205,577 616,732 308,366 154,183 462,550 231,275 693,826 346,913 1,040,740 520,370 260,185 780,556 390,278 195,139 585,418 292,709 878,128 439,064 219,532 109,766 54,883 164,650 82,325 246,976 123,488 61,744 30,872 15,436 7,718 3,859 11,578 5,789 17,368 8,684 4,342

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