2² × 5 × 6581

Prime Factor Structure

Factorization String 2^2 × 5 × 6581

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 276,444

Proper Divisor Sum 144,824

Digit Sum / Digital Root 13 (Root: 4)

Adjacent Primes #131617 ← → #131627

1 2 4 5 10 20 6,581 13,162 26,324 32,905 65,810 131,620

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

131,620 65,810 32,905 98,716 49,358 24,679 74,038 37,019 111,058 55,529 166,588 83,294 41,647 124,942 62,471 187,414 93,707 281,122 140,561 421,684 210,842 105,421 316,264 158,132 79,066 39,533 118,600 59,300 29,650 14,825 44,476 22,238 11,119 33,358 16,679 50,038 25,019 75,058 37,529 112,588 56,294 28,147 84,442 42,221 126,664 63,332 31,666 15,833 47,500 23,750 11,875 35,626 17,813 53,440 26,720 13,360 6,680 3,340 1,670 835

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