1,678,040

2³ × 5 × 7 × 13 × 461

1,678,040 is even and not a perfect square. Its factorization is 2^3 × 5 × 7 × 13 × 461 and its 64 divisors sum to 4,656,960.

Prime Factor Structure

Factorization String 2^3 × 5 × 7 × 13 × 461

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Total Divisors 64

Divisor Sum (σ) 4,656,960

Proper Divisor Sum 2,978,920

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #1678037 ← → #1678067

1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 461 520 728 910 922 1,820 1,844 2,305 3,227 3,640 3,688 4,610 5,993 6,454 9,220 11,986 12,908 16,135 18,440 23,972 25,816 29,965 32,270 41,951 47,944 59,930 64,540 83,902 119,860 129,080 167,804 209,755 239,720

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

1,678,040 839,020 419,510 209,755 629,266 314,633 943,900 471,950 235,975 707,926 353,963 1,061,890 530,945 1,592,836 796,418 398,209 1,194,628 597,314 298,657 895,972 447,986 223,993 671,980 335,990 167,995 503,986 251,993 755,980 377,990 188,995 566,986 283,493 850,480 425,240 212,620 106,310 53,155 159,466 79,733 239,200 119,600 59,800 29,900 14,950 7,475 22,426 11,213 33,640 16,820 8,410 4,205 12,616 6,308 3,154 1,577 4,732 2,366 1,183 3,550 1,775

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