1,304,156

2² × 7 × 47 × 991

1,304,156 has digital root 2. The neighboring primes are 1304137 and 1304167; its proper-divisor sum differs from the starting integer by 58,184.

Prime Factor Structure

Factorization String 2^2 × 7 × 47 × 991

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 24

Divisor Sum (σ) 2,666,496

Proper Divisor Sum 1,362,340

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #1304137 ← → #1304167

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

1,304,156 652,078 326,039 978,118 489,059 1,467,178 733,589 2,200,768 1,100,384 550,192 275,096 137,548 68,774 34,387 103,162 51,581 154,744 77,372 38,686 19,343 58,030 29,015 87,046 43,523 130,570 65,285 195,856 97,928 48,964 24,482 12,241 36,724 18,362 9,181 27,544 13,772 6,886 3,443 10,330 5,165 15,496 7,748 3,874 1,937 5,812 2,906 1,453 4,360 2,180 1,090 545 1,636 818 409 1,228 614 307 922 461 1,384