2³ × 5 × 21821

Prime Factor Structure

Factorization String 2^3 × 5 × 21821

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,963,980

Proper Divisor Sum 1,091,140

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #872791 ← → #872843

1 2 4 5 8 10 20 40 21,821 43,642 87,284 109,105 174,568 218,210 436,420 872,840

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

872,840 436,420 218,210 109,105 327,316 163,658 81,829 245,488 122,744 61,372 30,686 15,343 46,030 23,015 69,046 34,523 103,570 51,785 155,356 77,678 38,839 116,518 58,259 174,778 87,389 262,168 131,084 65,542 32,771 98,314 49,157 147,472 73,736 36,868 18,434 9,217 27,652 13,826 6,913 20,740 10,370 5,185 15,556 7,778 3,889 11,668 5,834 2,917 8,752 4,376 2,188 1,094 547 1,642 821 2,464 1,232 616 308 154

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