2³ × 5 × 3491

Prime Factor Structure

Factorization String 2^3 × 5 × 3491

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 314,280

Proper Divisor Sum 174,640

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #139627 ← → #139661

1 2 4 5 8 10 20 40 3,491 6,982 13,964 17,455 27,928 34,910 69,820 139,640

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

139,640 69,820 34,910 17,455 52,366 26,183 78,550 39,275 117,826 58,913 176,740 88,370 44,185 132,556 66,278 33,139 99,418 49,709 149,128 74,564 37,282 18,641 55,924 27,962 13,981 41,944 20,972 10,486 5,243 15,730 7,865 23,596 11,798 5,899 17,698 8,849 26,548 13,274 6,637 19,912 9,956 4,978 2,489 7,468 3,734 1,867 5,602 2,801 8,404 4,202 2,101 6,304 3,152 1,576 788 394 197 592 296 148

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