2⁴ × 13 × 19 × 163

Prime Factor Structure

Factorization String 2^4 × 13 × 19 × 163

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 40

Divisor Sum (σ) 1,423,520

Proper Divisor Sum 779,344

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #644173 ← → #644191

1 2 4 8 13 16 19 26 38 52 76 104 152 163 208 247 304 326 494 652 988 1,304 1,976 2,119 2,608 3,097 3,952 4,238 6,194 8,476 12,388 16,952 24,776 33,904 40,261 49,552 80,522 161,044 322,088 644,176

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

644,176 322,088 161,044 80,522 40,261 120,784 60,392 30,196 15,098 7,549 22,648 11,324 5,662 2,831 8,494 4,247 12,742 6,371 19,114 9,557 28,672 14,336 7,168 3,584 1,792 896 448 224 112 56 28 14 7 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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