1,618,767

3² × 131 × 1373

For 1,618,767, the 12 positive divisors have a total of 2,357,784. Removing 1,618,767 leaves 739,017, which gives the deficient classification.

Prime Factor Structure

Factorization String 3^2 × 131 × 1373

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 12

Divisor Sum (σ) 2,357,784

Proper Divisor Sum 739,017

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #1618741 ← → #1618769

1 3 9 131 393 1,179 1,373 4,119 12,357 179,863 539,589 1,618,767

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

1,618,767 4,856,302 2,428,151 7,284,454 3,642,227 10,926,682 5,463,341 16,390,024 8,195,012 4,097,506 2,048,753 6,146,260 3,073,130 1,536,565 4,609,696 2,304,848 1,152,424 576,212 288,106 144,053 432,160 216,080 108,040 54,020 27,010 13,505 40,516 20,258 10,129 30,388 15,194 7,597 22,792 11,396 5,698 2,849 8,548 4,274 2,137 6,412 3,206 1,603 4,810 2,405 7,216 3,608 1,804 902 451 1,354 677 2,032 1,016 508 254 127 382 191 574 287