2 × 21383

Prime Factor Structure

Factorization String 2 × 21383

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 64,152

Proper Divisor Sum 21,386

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #42751 ← → #42767

1 2 21,383 42,766

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

42,766 21,383 64,150 32,075 96,226 48,113 144,340 72,170 36,085 108,256 54,128 27,064 13,532 6,766 3,383 10,150 5,075 15,226 7,613 22,840 11,420 5,710 2,855 8,566 4,283 12,850 6,425 19,276 9,638 4,819 14,458 7,229 21,688 10,844 5,422 2,711 8,134 4,067 12,202 6,101 18,304 9,152 4,576 2,288 1,144 572 286 143 430 215 646 323 970 485 1,456 728 364 182 91 274

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