3⁴ × 7 × 691

Prime Factor Structure

Factorization String 3^4 × 7 × 691

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 20

Divisor Sum (σ) 669,856

Proper Divisor Sum 278,059

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #391789 ← → #391801

1 3 7 9 21 27 63 81 189 567 691 2,073 4,837 6,219 14,511 18,657 43,533 55,971 130,599 391,797

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

391,797 1,175,392 587,696 293,848 146,924 73,462 36,731 110,194 55,097 165,292 82,646 41,323 123,970 61,985 185,956 92,978 46,489 139,468 69,734 34,867 104,602 52,301 156,904 78,452 39,226 19,613 58,840 29,420 14,710 7,355 22,066 11,033 33,100 16,550 8,275 24,826 12,413 37,240 18,620 9,310 4,655 13,966 6,983 20,950 10,475 31,426 15,713 47,140 23,570 11,785 35,356 17,678 8,839 26,518 13,259 39,778 19,889 59,668 29,834 14,917

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