1,507,555

5 × 7 × 19 × 2267

For 1,507,555, the 16 positive divisors have a total of 2,177,280. Removing 1,507,555 leaves 669,725, which gives the deficient classification.

Prime Factor Structure

Factorization String 5 × 7 × 19 × 2267

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 2,177,280

Proper Divisor Sum 669,725

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #1507531 ← → #1507559

1 5 7 19 35 95 133 665 2,267 11,335 15,869 43,073 79,345 215,365 301,511 1,507,555

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

1,507,555 4,522,666 2,261,333 6,784,000 3,392,000 1,696,000 848,000 424,000 212,000 106,000 53,000 26,500 13,250 6,625 19,876 9,938 4,969 14,908 7,454 3,727 11,182 5,591 16,774 8,387 25,162 12,581 37,744 18,872 9,436 4,718 2,359 7,078 3,539 10,618 5,309 15,928 7,964 3,982 1,991 5,974 2,987 8,962 4,481 13,444 6,722 3,361 10,084 5,042 2,521 7,564 3,782 1,891 5,674 2,837 8,512 4,256 2,128 1,064 532 266

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