878,440

2³ × 5 × 21961

878,440 factors as 2^3 × 5 × 21961. Its 16 positive divisors give a proper-divisor sum of 1,098,140, so this integer is abundant. The Collatz stopping time is 69 steps.

Prime Factor Structure

Factorization String 2^3 × 5 × 21961

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,976,580

Proper Divisor Sum 1,098,140

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #878419 ← → #878443

Radix Representation

Decimal	878440
Binary	11010110011101101000 (20 bits)
Octal	0o3263550
Hexadecimal	0xD6768

Divisor Catalog (16)

1 2 4 5 8 10 20 40 21,961 43,922 87,844 109,805 175,688 219,610 439,220 878,440

Collatz Trajectory (69 steps to reach 1)

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

878,440 439,220 219,610 109,805 329,416 164,708 82,354 41,177 123,532 61,766 30,883 92,650 46,325 138,976 69,488 34,744 17,372 8,686 4,343 13,030 6,515 19,546 9,773 29,320 14,660 7,330 3,665 10,996 5,498 2,749 8,248 4,124 2,062 1,031 3,094 1,547 4,642 2,321 6,964 3,482 1,741 5,224 2,612 1,306 653 1,960 980 490 245 736 368 184 92 46 23 70 35 106 53 160

More profiles

Browse other published profiles and their separate link collections.

No other profiles in this collection.

← Previous Integer #878,439 Browse Full Index Next Integer #878,441 →