2² × 7 × 83 × 181

Prime Factor Structure

Factorization String 2^2 × 7 × 83 × 181

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 856,128

Proper Divisor Sum 435,484

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #420613 ← → #420671

1 2 4 7 14 28 83 166 181 332 362 581 724 1,162 1,267 2,324 2,534 5,068 15,023 30,046 60,092 105,161 210,322 420,644

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

420,644 210,322 105,161 315,484 157,742 78,871 236,614 118,307 354,922 177,461 532,384 266,192 133,096 66,548 33,274 16,637 49,912 24,956 12,478 6,239 18,718 9,359 28,078 14,039 42,118 21,059 63,178 31,589 94,768 47,384 23,692 11,846 5,923 17,770 8,885 26,656 13,328 6,664 3,332 1,666 833 2,500 1,250 625 1,876 938 469 1,408 704 352 176 88 44 22 11 34 17 52 26 13

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