1,784,978

2 × 13² × 5281

1,784,978 factors as 2 × 13^2 × 5281. Its 12 positive divisors give a proper-divisor sum of 1,114,840, so this integer is deficient. The Collatz stopping time is 158 steps.

Prime Factor Structure

Factorization String 2 × 13^2 × 5281

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 2,899,818

Proper Divisor Sum 1,114,840

Digit Sum / Digital Root 44 (Root: 8)

Adjacent Primes #1784977 ← → #1784989

Radix Representation

Decimal	1784978
Binary	110110011110010010010 (21 bits)
Octal	0o6636222
Hexadecimal	0x1B3C92

Divisor Catalog (12)

1 2 13 26 169 338 5,281 10,562 68,653 137,306 892,489 1,784,978

Collatz Trajectory (158 steps to reach 1)

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

1,784,978 892,489 2,677,468 1,338,734 669,367 2,008,102 1,004,051 3,012,154 1,506,077 4,518,232 2,259,116 1,129,558 564,779 1,694,338 847,169 2,541,508 1,270,754 635,377 1,906,132 953,066 476,533 1,429,600 714,800 357,400 178,700 89,350 44,675 134,026 67,013 201,040 100,520 50,260 25,130 12,565 37,696 18,848 9,424 4,712 2,356 1,178 589 1,768 884 442 221 664 332 166 83 250 125 376 188 94 47 142 71 214 107 322

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