856,422

2 × 3² × 7² × 971

Prime Factor Structure

Factorization String 2 × 3^2 × 7^2 × 971

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 36

Divisor Sum (σ) 2,160,756

Proper Divisor Sum 1,304,334

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #856421 ← → #856441

1 2 3 6 7 9 14 18 21 42 49 63 98 126 147 294 441 882 971 1,942 2,913 5,826 6,797 8,739 13,594 17,478 20,391 40,782 47,579 61,173 95,158 122,346 142,737 285,474 428,211 856,422

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

856,422 428,211 1,284,634 642,317 1,926,952 963,476 481,738 240,869 722,608 361,304 180,652 90,326 45,163 135,490 67,745 203,236 101,618 50,809 152,428 76,214 38,107 114,322 57,161 171,484 85,742 42,871 128,614 64,307 192,922 96,461 289,384 144,692 72,346 36,173 108,520 54,260 27,130 13,565 40,696 20,348 10,174 5,087 15,262 7,631 22,894 11,447 34,342 17,171 51,514 25,757 77,272 38,636 19,318 9,659 28,978 14,489 43,468 21,734 10,867 32,602

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