2² × 5281

Prime Factor Structure

Factorization String 2^2 × 5281

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 36,974

Proper Divisor Sum 15,850

Digit Sum / Digital Root 10 (Root: 1)

Adjacent Primes #21121 ← → #21139

1 2 4 5,281 10,562 21,124

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

21,124 10,562 5,281 15,844 7,922 3,961 11,884 5,942 2,971 8,914 4,457 13,372 6,686 3,343 10,030 5,015 15,046 7,523 22,570 11,285 33,856 16,928 8,464 4,232 2,116 1,058 529 1,588 794 397 1,192 596 298 149 448 224 112 56 28 14 7 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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