8,422,421

7 × 31 × 37 × 1049

For 8,422,421, the 16 positive divisors have a total of 10,214,400. Removing 8,422,421 leaves 1,791,979, which gives the deficient classification.

Prime Factor Structure

Factorization String 7 × 31 × 37 × 1049

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 10,214,400

Proper Divisor Sum 1,791,979

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #8422411 ← → #8422451

1 7 31 37 217 259 1,049 1,147 7,343 8,029 32,519 38,813 227,633 271,691 1,203,203 8,422,421

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

8,422,421 25,267,264 12,633,632 6,316,816 3,158,408 1,579,204 789,602 394,801 1,184,404 592,202 296,101 888,304 444,152 222,076 111,038 55,519 166,558 83,279 249,838 124,919 374,758 187,379 562,138 281,069 843,208 421,604 210,802 105,401 316,204 158,102 79,051 237,154 118,577 355,732 177,866 88,933 266,800 133,400 66,700 33,350 16,675 50,026 25,013 75,040 37,520 18,760 9,380 4,690 2,345 7,036 3,518 1,759 5,278 2,639 7,918 3,959 11,878 5,939 17,818 8,909