428,980

2² × 5 × 89 × 241

Prime Factor Structure

Factorization String 2^2 × 5 × 89 × 241

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 24

Divisor Sum (σ) 914,760

Proper Divisor Sum 485,780

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #428977 ← → #429007

1 2 4 5 10 20 89 178 241 356 445 482 890 964 1,205 1,780 2,410 4,820 21,449 42,898 85,796 107,245 214,490 428,980

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

428,980 214,490 107,245 321,736 160,868 80,434 40,217 120,652 60,326 30,163 90,490 45,245 135,736 67,868 33,934 16,967 50,902 25,451 76,354 38,177 114,532 57,266 28,633 85,900 42,950 21,475 64,426 32,213 96,640 48,320 24,160 12,080 6,040 3,020 1,510 755 2,266 1,133 3,400 1,700 850 425 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911 2,734

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